AQUARICH (eco) - Kinetik

AQUARICH ® 

Moisture for Skin & Hair 

(eco)

Table of contents 

1 General introduction 4 

2 The skin and its structure 5 

2.1 The skin structure 5 

2.2 The cornea layer 5 

3 Active substances in AQUARICH ® 7 

3.1 Black oat (Avena strigosa) 7 

3.2 Lecithin fraction 9 

3.3 AQUARICH ® , a complete concept 10 

4 Studies on effectiveness/ Choice of methods/ Results 11 

4.1 Determination of effectiveness in-vivo by using Hydrascan ® 11 

4.1.1 Description of methods and test conditions 11 

4.2 Measuring results after 1, 3, 8 and 24 hours 12 

4.2.1 General conditions 12 

4.2.2 Measuring results of the upper epidermis layer 12 

4.2.3 Measuring results of the middle epidermis layer 12 

4.2.4 Measuring results of the lower epidermis layer 13 

4.2.5 Summarized results: the entire epidermis 13 

4.3 Long-term moisturizing effect of 2% and 4% AQUARICH ® 14 

5 Application and storage 15 

5.1 Summary 15 

5.2 Application methods 15 

5.3 Origin of the content materials 15 

5.4 Storage instructions 15 

5.5 Manufacturing notes 15 

5.6 Recommended concentration for use 15 

6 Specification 16 

6.1 Product specifications 16 

7 Registration 17 

7.1 Registration and content information 17 

7.2 Preservatives 17 

8 Toxicology and evaluation of safety 18 

8.1 Toxicology 18 

8.2 Eco-toxicology 18 

8.3 Water endangerment class (German: WGK) 19 

8.4 Safety evaluation 19 

9 The test emulsions and its effect 20 

9.1 Product description 20 

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(eco) │ Moisture for Skin & Hair

9.2 Formula number: DAY 0402 20 

9.3 Production of the test emulsion DAY 0402 21 

9.4 Data on stability 21 

9.5 Efficacy of DAY 0402 cream and a comparative cream measured against untreated skin 21 

9.5.1 General 21 

9.5.2 The moisturizing effect of the test cream with 4% AQUARICH ® 

9.6 Summary 

22 

24 

10 Bibliography 25 

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1 General introduction 

Water – the origin of all life forms!! 

The first civilisations developed by the sea. 70% of the surface of the earth is covered with water. 

Man consists of 70% water and also the skin can be included in this list 

No connection is more important for our existence and our well-being. 

Water performs many vital functions in our body. Water is irreplaceable as a means of transport 

and a solvent. Water also performs a major function in the regulation of body temperature. 

A lack of water not only reduces the physical powers but can, depending on the extent, also lead to 

serious damage to one’s health. As little as a 4% lack of water in our body system results in a 25% 

reduction in physiological powers. Such a lack of moisture inevitably has an effect on the skin. The 

appearance of the skin deteriorates considerably. The first stage is certainly a pale, unhealthy 

looking skin, the lack of elasticity can lead to chapping and slow-healing wounds later. 

Frequent sunbathing, wind, household work and other environmental influences dry out our skin. As 

a result, it loses resiliency and vitality, appearing rough and dry. With increasing age, the skin 

renewal cycle slows down, leading to a more sensitive and thinner skin which requires special 

protection. Therefore, it is extremely important to maintain a healthy and intact skin barrier, provide 

the skin with moisturizing active agents. 

For this dry and sensitive skin, RAHN has developed an active agent which sets new, far-reaching 

standards through its uniqueness and effectiveness. 

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2 The skin and its structure 

2.1 The skin structure 

The human skin is the largest organ of our body. It consists of three layers: the epidermis (or 

cuticle), the derma (or corium), and the subcutis (or hypodermis). 

The skin has to fulfil a great number of tasks. A very interesting composition of the skin is 

necessary in order to fulfil these numerous tasks. 

Hair 

Meissner’s 

corpuscles 

Epidermis 

Cornea layer 

Basal layer 

Corium 

Sebaceous 

gland 

Smooth muscle 

Hair papilla 

Subcutaneous 

fatty tissue 

Fat cells 

Nerve 

Blood vessels Sweat gland Nerve Pacini’s corpuscles 

2.2 The cornea layer 

The cornea layer (stratum corneum) plays an 

especially important part in the subject of “protection 

of the skin“. As the outermost layer of the epidermis, 

the cornea forms a sort of barrier stage in the skin. It 

is comparable to a wall made of bricks stuck together 

with mortar. This “wall” must be kept in perfect 

condition so that it can perform its protective 

function. 

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Cementsubstance 

Horny cells 

Water 

Lipid 

double 

layer 

The wall-like 

structure made of 

cornified, 

keratinised cells 

and cement 

substance 

prevents, on the 

one hand, the 

penetration of 

foreign and toxic 

substances from th 

outside and the 

exceedingly fast 

evaporation of 

water out of the 

skin on the other 

side. 

In other words, this cornea layer concerns an enormously important zone for protection and 

maintenance of healthy, fully functional skin. 

With increasing age, the skin becomes less elastic and loses suppleness, the cement substance 

becomes brittle, and small gaps form. Water can evaporate through these gaps, and the skin 

begins to feels dry and rough. The cell membranes, which mainly consist of lecithin, not only 

function as the limits of the cells but also regulate the exchange of substances, activate the 

enzymes and transfer of ions as well as the transmission of nerve stimuli. Membranes consist of 

30-40% of lecithin (Approx.). 

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3 Active substances in AQUARICH ® 

3.1 Black oat (Avena strigosa) 

From the Far East, very old records exist which prove that oat was cultivated by early civilizations. 

Due to its properties as a foodstuff, its triumphal march into our latitudes could not be halted, the 

oat also thrived excellently in our climate zones. Oat was planted more and more frequently. 

However, the demand for more fertile and more productive kinds of oat has caused the original oat 

(Avena strigosa) to vanish into oblivion. Today, mainly Avena sativa, or common oat, is grown. 

The genus Avena strigosa is designated as the original oat. Originally 

a wild-growing plant, it was laboriously harvested by hand. Due to its 

low yield of grain per ear, the search for more productive kinds started 

soon and was successful. Nowadays, mainly Avena sativa is 

cultivated, which, although has shorter ears than black oat, is much 

more productive and is therefore much more interesting for the 

industrial countries. 

The grain of the black oat purely contains the 

unique vigor of the original plant. 

Despite adverse conditions, it has managed 

to survive until modern times and is revived in 

the moisturizer AQUARICH®. 

It is not surprising that black oat is used in 

several dietary supplements for performance 

enhancement. Equestrian sport insiders have 

used black oat to increase the performance of 

race horses by releasing their power reserves 

over longer time. In view of this and the fact 

that in the top-class sport industry, black oat 

is preferably used instead of common oat 

(although it is more easily available on the market at lower costs), this speaks for the uniqueness of 

the original oat. 

This primary source of vitality and vigor contains a wide range of ingredients. 

Polysaccharides are the main component of oats. The high content of high-molecular glucose 

building blocks is even more important. Particularly the high content of beta glucan in the oat grain 

makes it very valuable for cosmetic applications. Thanks to beta glucan, the skin feels soft and 

supple and can bind water better. The natural repair and protective function is also optimised by 

beta glucan. Due to the existence of various saponins, (avenacin, avenacosid) the oat grain extract 

has an antibiotic effect. 

In addition, amino acids, the irreplaceable building blocks of living tissue, are present in much 

higher concentrations in oat than in other types of cereal. Oat contains all eight essential amino 

acids. 

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Amino acid content calculated in % of dry matter 

in 100 g of ground grain 

Amino acid Oat Barley Corn Wheat Rye 

Valine* 0.89 0.50 0.46 0.56 0.53 

Leucine* 1.12 0.69 1.16 0.86 0.69 

Isoleucine* 0.77 0.42 0.41 0.59 0.43 

Methionine* + Cystine 0.54 0.34 0.29 0.48 0.36 

Threonine* 0.49 0.33 0.36 0.37 0.37 

Phenylanaline* + Tyrosine* 1.35 0.87 0.96 1.11 0.81 

Tryptophan* 0.19 0.12 0.055 0.15 0.11 

Lysine* 0.55 0.33 0.26 0.35 0.41 

Total 5.9 3.6 3.955 4.47 3.71 

(Table from: Hafer, Volksnahrung und “Functional Food”, excerpt from speech by Mr. Roehker) 

* essential amino acids 

The above table shows the superiority of oat in its amino acid content as well as in its selection of 

essential amino acids. 

Comparison of several cereals based on the content of zinc and manganese in mg/100g in the 

whole grain: 

Cereals Zinc Manganese 

Oat 3.7 4.6 

Corn 2.5 0.5 

Wheat 3.0 2.4 

Rye 1.3 2.2 

The very high natural content of the two trace elements zinc and manganese substantiates the 

assumption that oat also has anti-oxidative properties. As is known from literature, zinc and 

manganese play an important role as catalysts in the prevention of the development of free 

radicals. 

The original oat dry extract is produced in a specially controlled process, developed especially for 

AQUARICH ® is particularly rich in the trace elements manganese and zinc and the B group 

vitamins. 

In cosmetics, oat will surely be applied due to its moisturizing and softening properties. 

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3.2 Lecithin fraction 

Lecithin is the collective term for a group of substances (glycoproteins) which are some of the most 

important and widespread substances of living nature. All living cells contain lecithin. Lecithins are 

present in very high concentrations in pulses (lentils, beans, soy, lupines...). The carbohydrate 

content in lecithins ranges from 2 to 50%. 

In the 19 th century, lecithin was isolated from egg yolk by 

a French chemist for the first time. Lecithin and its various 

fractions are known as emulsifiers. Highly purified 

fractions are not used for these applications. 

A special lecithin fraction, very rich in unsaturated 

phospholipids, was selected for AQUARICH ® . 

Phospholipids are essential components of every cell. 

One positive property is that the phospholipids in lecithin 

makes the skin supple and soft without feeling greasy. In 

addition, it has excellent water binding properties. 

Alpha phosphatidylcholine 

R: fatty acids 

Phosphatidylcholine (PC) is 

extracted in a controlled process 

from lecithin. Normally, raw 

lecithin contains approx. 2% - 3% 

PC. The fraction used for 

AQUARICH ® contains over 70% 

PC.Unsaturated phosphatidylcholine 

(use in AQUARICH ® ) 

contains the omega 6 fatty acids 

essential for humans. 

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Choline- 

Serine 

Hydrophilic head 

group 

Phosphates 

Glycerin 

Hydrophobic end 

group 

Fatty acids 

Fatty acids 

3.3 AQUARICH ® , a complete concept 

‣ The active agents in the black oat extract help to bind moisture into the 

skin having a long lasting and vitalising effect. 

‣ The special lecithin fraction helps strengthens the structure of the skin 

barrier. 

‣ The Transepidermal Water Loss (TEWL) value is lowered, moisture in the 

skin evaporates more slowly, hydration is clearly sustained which 

supports the synergistic effect of phosphatidylcholine and black oats. 

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4 Studies on effectiveness/ Choice of methods/ Results 

4.1 Determination of effectiveness in-vivo by using Hydrascan ® 

4.1.1 Description of methods and test conditions 

The test for determining the moisturizing effect of AQUARICH ® was conducted on 15 persons in an 

independent testing institute. The test emulsion DAY 0402 (4% AQUARICH ® ) was tested against a 

placebo and a standard moisturizer (0.1% hyaluronic acid) to determine the moisturizing effect. The 

analyses were conducted on the underside of the forearm. 

The skin was measured with the Hydrascan ® 

application. 

at 1h, 3h, 8h and 24h intervals after the last 

With the specially developed Hydrascan ® method it is possible to determine the moisture in three 

different skin depths. The so-called “Transient Thermal Transfer“ (TTT) enables the measurement 

of skin moisture in the epidermis divided into three layers, the upper, middle and lower epidermis 

layers. 

The Hydrascan ® method is based on thermal conductivity and resistance which after conversion 

can be used for determining skin moisture exactly. 

The TTT measurement is 

based on the combination of 

thermal radiation/conductivity 

which allows conclusions to be 

drawn about the extent of skin 

moisture. 

The main advantage of this 

measuring method is that three 

different measuring zones can 

be integrated in just one 

measurement. 

The moisturizing effect of AQUARICH ® was determined in the test during 1h, 3h, 8h and 24h on 15 

persons. 

One hour before the first measurement (D0) the subjects were treated as follows: 

• The test persons appeared at the testing institute without pre-treatment of the arms by any 

applications 

• All subjects were informed about the exact procedure 

• Measurement of the zero value with Hydrascan ® 

• Application of a standardised amount (2μl/cm 2 ) of the test vehicle 

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4.2 Measuring results after 1, 3, 8 and 24 hours 

4.2.1 General conditions 

A test emulsion DAY 0402 with 4% AQUARICH ® and a comparative emulsion with 0.1% hyaluronic 

acid were measured against a placebo. The measurement took place in three different epidermal 

layers. Thus the analyses were calculated individually initially and as a complete epidermis 

afterwards. 

4.2.2 Measuring results of the upper epidermis layer 

The AQUARICH ® has an improved moisturizing effect in comparison to the hyaluronic acid. Even 

after 24 hours, the upper epidermis layer has a higher skin moisture content of +9.6%. 

4.2.3 Measuring results of the middle epidermis layer 

Unlike the hyaluronic acid, AQUARICH ® was able to help maintain a moist skin even after 24 hours. 

By increasing skin moisture by +11.6%, AQUARICH ® has a very lasting effect and penetrates 

deeper into the epidermis. 

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4.2.4 Measuring results of the lower epidermis layer 

A very interesting report is that after application of a cream containing 4% AQUARICH ® , the skin 

moisture continues to exist after 8 respectively 24 hours and has excellent values. 

It may be assumed that the improved moisturization of the lower epidermis layer also results from 

the optimised barrier function plus the surface-active agents from the black oat. 

4.2.5 Summarized results: the entire epidermis 

When AQUARICH ® is used, an immediate intensive effect is measured after application (after 1 

hour => +34%). The moisture level drops as expected after 3 hours. After 8 hours, the intensive 

strengthening of the barrier properties of the cornea layer and the moisture-binding active agents in 

the black oat become more noticeable, as the moisture increases in the entire epidermis. This 

moisturizing effect still increases slightly at 24 hours. 

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4.3 Long-term moisturizing effect of 2% and 4% AQUARICH ® 

After the results of the emulsion DAY 0402 with regards to moisturizing turned out very well, it was 

interesting to look at the effects of a lower AQUARICH ® (2%) concentration. 

The results 24 hours after the last application are given below. 

The emulsion with 4% AQUARICH ® still shows a remarkable moisturizing effect of 27.8% 24 hours 

after the last application. 

The analysis of the 2% AQUARICH ® emulsion is very interesting. An increase in moisturization of 

the epidermis of 6% can be measured 24 hours after the last application. 

This measurement shows that AQUARICH ® is effective at lower concentrations. Considering the 

fact that the comparative emulsion with 0.1% hyaluronic acid had absolutely no more effect after 24 

hours, even this result is very positive. 

24 hours after the last application (D0) the 

2% AQUARICH ® emulsion achieved a + 6 % moisturization of the epidermis 

4% AQUARICH ® emulsion achieved a + 27.8 % moisturization of the epidermis 

0.1% Hyaluroic acid emulsion achieved a – 2.5 % moisturization of the epidermis 

This leads to the conclusion that AQUARICH ® has 

an excellent long-term and deep effect. 

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5 Application and storage 

5.1 Summary 

These well-suited, synergistically active components in AQUARICH ® meet the desire for perceptible 

intensive moisturization of the skin. 

In addition, the skin becomes more resilient and appears fresher. 

5.2 Application methods 

♦ Day care ♦ Body lotion 

♦ Night care 

♦ After sun 

♦ Moisturizing fluid 

5.3 Origin of the content materials 

AQUARICH ® is of vegetable origin. It contains no materials of animal or mineral origin. 

5.4 Storage instructions 

AQUARICH ® should be stored in a cool and dark place between 10°C (50°F) and 20°C (68°F). 

The storage life is 24 month after production. 

5.5 Manufacturing notes 

No special manufacturing notes. 

5.6 Recommended concentration for use 

2 - 5% 

Page 15 / 26 



6 Specification 

6.1 Product specifications 

Test point Test device Specification values 

Visual PV 063 light brown opaque solution 

Odour PV 063 characteristic, slightly malty 

Consistency PV 063 liquid, slightly viscous 

pH value (directly) PV 006 5.0 – 6.0 

Refraction index 20°C (68°F) PV 044 1.430 – 1.450 

Density 20°C (68°F) PV 007 1.180 – 1.210 g/ml 

Total germ count PV 032 < 50 CFU/g 

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7 Registration 

EU: Glycerin, Aqua, Avena Strigosa Seed Extract, Lecithin. 

USA: Glycerin, Water, Avena Strigosa Seed Extract, Lecithin. 

Japan: Glycerin, Water, Avena Strigosa Seed Extract, Lecithin. 

7.1 Registration and content information 

INCI EU Content in % CAS-Nr. EINECS-Nr. 

Glycerin 50-75 56-81-5 200-289-5 

Aqua 25-50 7732-18-5 231-791-2 

Avena Strigosa 1 - 5 475994-85-5 - 

Lecithin 1 - 5 8002-43-5 232-307-2 

7.2 Preservatives 

Potassium sorbate is used as a preservative. AQUARICH ® contains 0.2% potassium sorbate. 

Page 17 / 26 



8 Toxicology and evaluation of safety 

8.1 Toxicology 

Test point Test method Evaluation 

Oral toxicity Research literature data non-toxic* 

Skin irritation Human patch test on 30 persons - 

not diluted 

no irritation 

Eye irritation BECAM test (in vitro), not diluted slightly irritant 

Sensitising Rep. Human patch test on 30 persons - 

not diluted 

Photo-toxicity Photo patch test on 50 persons - 

not diluted 

no irritation 

no irritation 

Mutagenic tendency AMES test (in vitro), not diluted not mutagenic 

*Because all ingredients in AQUARICH ® are used frequently in the foodstuff industry, there is no 

toxic risk. 

8.2 Eco-toxicology 

Test point Test method Evaluation 

Biodegradability OECD 203 F degrades well 

Daphnien limit test 100 mg/litre, 48 h. non-toxic 

An eco-toxic effect of AQUARICH ® is not to be expected. As a water soluble and easily 

biodegradable product, respectively, bioaccumulation as a result of this product can be ruled out. 

Page 18 / 26 



8.3 Water endangerment class (German: WGK) 

Raw material Research literature data Evaluation 

Water existing WGK 0 

Glycerin existing WGK 0 

Avena Strigosa Seed Extract none unknown 

Lecithin none Unknown 

Lecithin and oat dry extract are used frequently in foodstuffs or in dietary supplements. For these 

reasons, these two ingredients are classified as harmless. 

We regard the good biological degradability and the non-toxic effect of the Daphnien limit test as 

confirmation of this supposition. 

Therefore AQUARICH ® is assessed by self-classification as a WGK 1 (water endangerment class 

1) product. 

8.4 Safety evaluation 

AQUARICH ® can be classified as harmless as a result of the extensive toxicological data and the 

additional eco-toxicological information. Neither irritating nor toxic characteristics arose during the 

test phase. In addition no irritations were determined during tests of the product’s effectiveness on 

the 15 people. 

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9 The test emulsions and its effect 

The test on effectiveness was carried out with a light, non-oily/fatty basis which conforms to the 

modern requirements and demands of a cream. 

The stability tests and the physical identification data of the cream DAY 0402 are described as 

follows. 

9.1 Product description 

White emulsion, pH value of 6.9, 

Centrifuge test (6000 U/min., 20 min.): no separation 

9.2 Formula number: DAY 0402 

Phase Raw material INCI-Name % [w/w] 

A Water demin. Aqua 74.25 

B Sisterna SP 30-C Sucrose Distearate 2.70 

Sisterna SP 70-C Sucrose Stearate 0.90 

Cetiol OE Dicaprylyl Ether 5.00 

Myritol 312 

Cegesoft C 24 

Uniphen 

Caprylic/ CapricTriglyceride 

Ethylhexyl Palmitate 

Phenoxyethanol, Methylparaben, 

Ethylparaben, Propylparaben, 

Butylparaben 

4.00 

7.00 

1.00 

C Carbopol ETD 2001 Carbomer 0.15 

Carbopol ETD 2050 

Carbomer 

0.10 

D 

NaOH solution 10%. 

Sodium Hydroxide, Aqua 

0.75 

E Perfume Perfume 0.15 

F AQUARICH ® Glycerin, Aqua, Avena Strigosa Seed 

Extract, Lecithin 

4.00 

---------- 

100.00 

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9.3 Production of the test emulsion DAY 0402 

1. Provide water and heat to 75°C (167°F) 

2. Mix and stir the Phase B raw materials so that the emulsifier is wetted by the oils, then heat to 

75°C (167°F) 

3. Shortly before emulsification, disperse Phase C into hot Phase B 

4. Soak Phase B/C in Phase A and homogenize slightly 

5. Add Phase D to the preparation and homogenize intensively 

6. Cool preparation to 40°C (104°F) by stirring 

7. Add Phases E and F by stirring and homogenize slightly again 

8. Cool preparation to 30°C (86°F) by stirring 

9.4 Data on stability 

The cream DAY 0402 should reach a size in drops of approx. 1-5 micrometers. 

The temperature stability evaluation carried out gave the following results: 

after 1 month after 2 months after 3 months 

at 3°C (37°F) o.k. o.k. o.k. 

at 20°C (68°F) o.k. o.k. o.k. 

at 40°C (104°F) o.k. o.k. o.k. 

at 50°C (122°F) o.k. o.k. change in size of drops 

Except at 50°C (122°F) there was no change in the size of the drops, viscosity changes, or change 

in pH values during the stability tests. 

At 50°C (122°F) no changes were note after two months. Only on the final evaluation after three 

months was a change in droplet size noted. 

9.5 Efficacy of DAY 0402 cream and a comparative cream measured against untreated 

skin 

9.5.1 General 

A test emulsion DAY 0402 with 4% AQUARICH ® and a comparative emulsion with 0.1% hyaluronic 

acid were measured against untreated skin. The measurement took place in three different 

epidermal layers. 

In the placebo the AQUARICH ® was totally replaced by glycerine (w/w). Thus the analyses were 

calculated individually first and as a complete epidermis afterwards. 

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9.5.2 The moisturizing effect of the test cream with 4% AQUARICH ® 

9.5.2.1 Upper epidermis layer measured against untreated skin 

With an improvement of skin moisture of over 26% compared to untreated skin, DAY 0402 showed 

an excellent effect on the upper epidermis layer. The DAY 0402 emulsion has clearly better 

properties compared to the emulsion with 0.1% hyaluronic acid. Even after 24 hours, a striking skin 

moisturization of over 19% is still measurable. The hyaluronic acid emulsion, on the other hand, 

has lost the moisturizing effect. 

9.5.2.2 Middle epidermis layer measured against untreated skin 

As in the upper epidermis layer, the properties of DAY 0402 are clearly better than those of the 

emulsion with 0.1% hyaluronic acid. 

It is very interesting that a lasting depth effect is detectable after 24 hours. An improvement of the 

skin moisture greater than 11% is still measurable in the middle epidermis layer after 24 hours. In 

contrast, the 0.1% hyaluronic acid emulsion loses its effect after 24 hours. 

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9.5.2.3 Lower epidermis layer measured against untreated skin 

The measurement of the lowest epidermis layer provides final proof that AQUARICH ® respectively 

DAY 0402 has an excellent depth effect. The great difference compared to untreated skin becomes 

noticeable after 24 hours. With hyaluronic acid emulsion, skin moisture drops back to the original 

level. With DAY 0402, on the other hand, it is stabilized at a level of +10 %. 

9.5.2.4 Entire epidermis layer measured against untreated skin 

All three layers cumulated together yield an interesting result with regard to the increase of skin 

moisture. Parallel to the analysis of item 3.2, it was determined that DAY 0402 has excellent 

moisturizing properties. Only one hour after application, skin moisture is improved by 62.9% 

measured against untreated skin. 

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9.6 Summary 

A clear increase of skin moisture with the DAY 0402 emulsion was determined by the efficacy tests 

conducted on 15 subjects. The considerable results are re-summarized in the following for the test 

emulsion: 

With the DAY 0402 emulsion, skin moisture increased by 63% compared to untreated skin 1 hour 

after application. 8 hours after application, an improvement of skin moisture of 54% can still be 

found. 

Skin moisture is improved by 33% also 24 hours after the last application of the DAY 0402 

emulsion. 

The test emulsion DAY 0402 (with 4% AQUARICH ® ) shows a significantly improved skin moisture 

balance compared to an emulsion with the same structure, but with 0.1% hyaluronic acid. 

The test formula was developed with consideration given to its stability, feeling to the skin and 

penetration behaviour in such a way that it meets the requirements and demands of a modern face 

cream. If the formula is changed only slightly, the determined values of the increased skin moisture 

can be taken directly. 

You can refer to a proven compilation of its effectiveness with data and remarks to its stability and 

production. Thus important valuable development time and expensive studies on effectiveness can 

be saved. 

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10 Bibliography 

‣ Hydratation der Haut-medizinische Notwendigkeit oder kosmetisches Werbeargument?, 

Hagen Tronnier, Parfümerie und Kosmetik, Nr. 2/87 

‣ Lexikon der Biochemie und Molekularbiologie, Herder Verlag, 1991 

‣ Benninghoff Anatomie, Makroskopische Anatomie, Band 2, 15. Auflage 1994, 

Urban und Schwarzenberg Verlag 

‣ Biochemie, D. Voet and J.G. Voet, Deutsche Übersetzung 1994, VCH Verlagsgesellschaft 

‣ Cytologie, Histologie und mikr. Anatomie..., Otto Bucher und Hubert Wartenberg, 

12. Auflage, 1997, Verlag Hans Huber 

‣ Römpp Chemie Lexikon, 9. Auflage, Thieme Verlag 1989 

‣ Taschenbuch der Drogenkunde, Heinz A. Hoppe, Walter de Gruyter, 1981 

‣ Enzyclopedia of common natural ingredients, second edition, Leung and Foster, 

John Wiley & Sons, Inc. 1996 

‣ Hager Handbuch der Drogen und Arzneimittel 2002, Springer Verlag, 2002 

‣ CTFA The International Cosmetic Ingredient Dictionary and Handbook, 9th Edition, 2001 

‣ Arzneidrogen, Georg Schneider/Karl Hiller, 4. Auflage, Akademischer Verlag, 1999 

‣ Moderne Kosmetik, Franz Greiter, Hüthig Verlag, 1985 

‣ Der Hautratgeber, Dr. med. Reinhard K. Achenbach, Trias Verlag, 1997 

‣ Products for Cosmetics, Lipoid GmbH, 2002 

‣ Hafer; Volksnahrung und “Functional Food”, excerpt from speech by Mr. Roehker 

Page 25 / 26 



RAHN AG 

Dörflistrasse 120 

CH-8050 Zürich 

Tel. +41 44 315 42 00 

Fax +41 44 315 42 45 

Cosmetics@rahn-group.com 

www.rahn-group.com 

RAHN GmbH 

Hahnstrasse 70 

DE-60528 Frankfurt am Main 

Tel. 0800 1 816 015 

Fax 0800 1 816 016 

RAHN (UK) Ltd. 

75 Park Road 

GB-Peterborough PE1 2TN 

Tel. 0800 0 323 743 

Fax 0800 0 323 744 

RAHN USA Corp. 

1005 North Commons Drive 

Aurora, Illinois 60504, USA 

Tel. +1 630 851 42 20 

Fax +1 630 851 48 63 

Disclaimer 

Utilisation of this document or parts thereof as well as product names for commercial or industrial applications is subject to explicit written approval by RAHN AG. This information is based on our own 

experience to date and we believe it to be reliable. It is intended only as a guide to use at your discretion and risk. We cannot guarantee favourable results and assume no liability in connection with its 

use, or the use of the methods or products described. None of this information is to be taken as a license to operate under, or a recommendation to infringe patents. 

Version: 05/2009

AQUARICH (eco) - Kinetik

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