TEGO® Sun Z 800 TEGO® Sun Z 800

TEGO® Sun Z 800
A hydrophobic and microfine ZnO with broad spectrum UV protection
• broad spectrum UV absorber
• no whitening
• increases the SPF when combined with other UV
absorbers
• excellent skin feel
• non-toxic, non-sensitising
• photo stable
• easy to disperse
• enhanced pH-stability
Personal Care

INCI Name (CTFA Name)
Zinc Oxide; Trimethoxycaprylylsilane
Chemical and physical properties
(not part of specifications)
Form
powder
ZnO content [%] > 94
pH value (4 % in water) ~ 7.0
Primary particle size
[nm]
Properties
10-60
TEGO ® Sun Z 800 is a unique microfine hydrophobic
coated Zinc Oxide with broad spectrum UV
absorption. The product is based on the uncoated
TEGO ® Sun Z 500 and offers additional benefits to
the formulator, due to its strongly hydrophobic
coating. The appearance of sun screen products
containing TEGO ® Sun Z 800 shows no whitening and
is transparent on skin after rub-in.
TEGO ® Sun Z 800 can be easily dispersed into any
common cosmetic oil by using high shear dispersing
tools. The additional use of isostearic acid has shown
an enhanced particle distribution. The small particle
size allows the formulator to use up to 15 % TEGO ®
Sun Z 800 with a transparent appearance and a
pleasant skin feel.
The coating has a strong adhesion to the pigment
and therefore it can't be washed away or evaporate.
It covers the ZnO particles and makes them
compatible with coated Titanium Dioxide.
The strong hydrophobic character of TEGO ® Sun Z
800 keeps it stable within the oil phase and
therefore has no significant influence on the pH
value of the emulsion.
TEGO ® Sun Z 800 provides a superior broad
spectrum protection up to a wavelength of 380 nm.
The absorption curve is identical with that of the
uncoated ZnO (Fig. 1).
Absrobance
1
0,9
0,8
0,7
0,6
0,5
0,4
0,3
Combinations with highly effective organic UV
absorbers and Titanium Dioxide have shown
powerful synergistic effects (e.g. with TiO2,
Ethylhexyl Triazone, Ethylhexyl Methoxycinnamate,
Phenylbenzimidazole Sulfonic Acid, Bis-
Ethylhexyloxyphenol Methoxyphenol Triazine,
Diethylhexyl Butamido Triazone, Octocrylene).
By utilising TEGO ® Sun Z 800, lower amounts of
organic filters can be used to achieve the same SPF.
Consumers' exposure to organic sun screen filters
can be minimized.
Hence, TEGO ® Sun Z 800 offers an excellent way to
provide good broad spectrum protection together
with an aesthetically superior appearance.
TEGO ® Sun Z 800 is characterized by its high purity
and an extremely low content of heavy metals.
Application
• Daily wear lotions and creams
• O/W and W/O sunscreens
• Sun protection for kids
Processing hints
W/O Emulsions
W/O formulations are produced according to
common practice.
To achieve the best SPF response and highest
transparency, it is recommended to disperse TEGO ®
Sun Z 800 directly into the oil phase of the emulsion
applying high sheer aggregates. Long term stable
emulsions with a better distribution of particles can
be obtained by adding small amounts (0.3 - 1.0%) of
fatty acids e.g. isostearic acid as a dispersing aid.
O/W Emulsions
TEGO ® Sun Z 800 has to be dispersed into the oil
phase of O/W emulsions. Due to the extremely
hydrophobic character, TEGO ® Sun Z 800 has no
tendency to penetrate into the water phase and thus
does not contribute significantly to the pH value of
the emulsion.
The additional use of isostearic acid is not necessary,
but small amounts have shown reduced agglomerate
particle sizes as well.
To obtain long term stable emulsions, the use of
consistency enhancers, e.g. GMS/fatty alcohols,
acrylamide gels, or xanthan gum and carbomers is
recommended.
0,2
0,1
0
280 300 320 340 360 380 400 420
Wavelength (nm)
Fig. 1 UV/VIS spectrum of TEGO ® Sun Z 800

Recommended usage concentration
1 - 25 % TEGO ® Sun Z 800
Packaging
700 kg pallet (28 x 25 kg bag)
Storage
Store the product at ambient temperatures and dry
conditions.
Approval
With the 26th amendment to the European Cosmetics
Regulation Zinc Oxide is not finally approved as UV
filter in appendix VII. The use permission is
extended temporarily from year to year, until a final
decision of the SCCNFP (Scientific committee for
cosmetics and non-food products) is reached.
In the United States the OTC Sunscreen monograph
allows the use of up to 25% Zinc Oxide.
Hazardous goods classification
Information concerning
• classification and labelling according to
regulations for transport and for dangerous
substances
• protective measures for storage and handling
• measures in accidents and fires
• toxicity and ecological effects
is given in our material safety data sheets.

Guide Line Formulations
O/W Sun Protection Lotion
Ma 75/03
Phase A
TEGO ® Care 215
(Ceteareth-15; Glyceryl Stearate)
2.5 %
TEGO ® Alkanol 18 (Stearyl Alcohol) 2.0 %
TEGIN ® M Pellets (Glyceryl Stearate) 1.0 %
TEGOSOFT ® TN
(C12-15 Alkyl Benzoate)
14.5 %
TEGO ® Sun Z 800 5.0 %
Phase B
Glycerin 3.0 %
Water 71.0 %
Phase C
TEGO® Carbomer 141 (Carbomer) 0.2 %
Mineral Oil (30 mPas) 0.8 %
Phase D
NaOH (10 % in water)
Preservative, Parfum
Preparation:
q.s.
q.s.
1. Disperse the pigment in phase B.
2. Heat phase A and B separately to approx. 80
°C.
3. Add phase A to phase B with stirring 1) .
4. Homogenise.
5. Cool with gentle stirring to approx. 60 °C and
add phase C.
6. Homogenise for a short time.
7. Cool with gentle stirring and add phase D
below 40 °C to adjust a pH-value of approx 7.
1) Important: If phase A has to be charged first into
the vessel, phase B must be added without
stirring.
O/W Sun Protection Lotion
SV 18/03-5 in vitro SPF* 16
Phase A
TEGO ® Care 215
(Ceteareth-15; Glyceryl Stearate)
2.5 %
TEGO ® Alkanol 18 (Stearyl Alcohol) 2.0 %
TEGIN ® M Pellets (Glyceryl Stearate) 1.0 %
Isostearic Acid 1.0 %
TEGOSOFT ® TN
(C12-15 Alkyl Benzoate)
8.5 %
Ethylhexyl Methoxycinnamate 5.0 %
TEGO ® Sun Z 800 10.0 %
Phase B
Glycerin 3.0 %
Water 66.6 %
Phase C
Xanthan Gum 0.4 %
Preservative, Parfum
Preparation:
q.s.
1. Disperse the pigment in phase B.
2. Heat phase A and B separately to approx. 80
°C.
3. Add phase A to phase B with stirring 1) .
4. Homogenise.
5. Cool with gentle stirring to approx. 60 °C and
add phase C.
6. Homogenise for a short time.
7. Cool with gentle stirring and add phase D
below 40 °C to adjust a pH-value of approx 7.
1) Important: If phase A has to be charged first into
the vessel, phase B must be added without
stirring.
Optometrics SPF 290S; PMMA slide; 1 mg/cm²

W/O Soft Sun Protection Cream
Ma 61/03 in vivo SPF* 16
Phase A
ISOLAN ® PDI
(Diisostearoyl Polyglyceryl-3 Dimer
Dilinoleate)
3.00 %
Hydrogenated Castor Oil 0.50 %
Microcrystalline Wax 0.50 %
ABIL ® Wax 9840 (Cetyl Dimethicone) 0.25 %
TEGOSOFT ® TN
(C12-15 Alkyl Benzoate)
7.00 %
Mineral Oil (30 mPas) 4.25 %
Cyclomethicone 10.00 %
Isostearic Acid 1.00 %
Ethylhexyl Methoxycinnamate 5.00 %
Polysilicone-15 (Parsol SLX) 3.00 %
Tocopheryl Acetate 0.50 %
Phase B
TEGO ® Sun Z 800 5.00 %
Phase C
Glycerin 2.00 %
Phenylbenzimidazole Sulfonic Acid 3.00 %
Sodium Chloride 0.50 %
Sodium Hydroxide (10 % in water) 4.40 %
Water 50.10 %
Preservative, Parfum
Preparation:
1. Heat phase A to approx. 80 °C.
2. Add phase B and disperse the pigment.
3. Add phase C (80 °C or room temperature)
slowly while stirring.
4. Homogenise for a short time.
5. Cool with gentle stirring below 30 °C and
homogenise again.
* According to the Colipa method (5 persons)
q.s.
W/O Sun Protection Cream
Ma 64/03 in vivo SPF* 30
Phase A
ABIL ® WE 09
(Polyglyceryl-4 Isostearate; Cetyl PEG/
PPG-10/1 Dimethicone; Hexyl Laurate)
5.00 %
Hydrogenated Castor Oil 0.50 %
Microcrystalline Wax 1.00 %
ABIL ® Wax 9840 (Cetyl Dimethicone) 0.25 %
TEGOSOFT ® OS
(Ethylhexyl Stearate)
11.25 %
Mineral Oil (30 mPas) 10.00 %
Isostearic Acid 1.00 %
Ethylhexyl Methoxycinnamate 7.00 %
TEGO ® Sun Z 800 15.00 %
TEGO ® Sun T 805
(Titanium Dioxide;
Trimethoxycaprylylsilane )
Phase B
4.00 %
Water 44.50 %
Sodium Chloride 0.5 %
Preservative, Parfum
q.s.
Preparation:
1. Heat phase A to approx. 80 °C and disperse
the pigment.
2. Add phase B (80 °C or room temperature)
slowly while stirring.
3. Homogenise for a short time.
4. Cool with gentle stirring below 30°C and
homogenise again.
* According to the Colipa method (5 persons)
F 11/06
Especially concerning Active Ingredients
This product information is not intended to provide legal or regulatory advice
about product uses or claims in any jurisdiction and should not be relied upon
for such guidance (especially in the United States, Canada, and Mexico). Since
global regulatory requirements differ, parties accessing this information are
solely responsible for determining whether the products and/or claims comply
with applicable local laws and regulations, including but not limited to import
and export regulations. Please contact your local Evonik representative for more
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that is not in compliance with the requirements of the country of the user.