This is a simple sunscreen lotion which uses two sunscreen filters, items 5 and 6, in addition to vitamin E, item 7. The formulation is an emulsion and requires the use of heating equipment to prepare it. Suitable heating equipment is needed and heat handling protective clothing, face shield and heat gloves are highly recomended.
All ingredients are readily available from many manufactures across the world. .
|
Item No |
Ingredient Name |
% wt |
Typical Form |
Purpose |
|
1 |
Phase A |
|
|
|
|
2 |
Lauryl glucoside |
4.00 |
Liquid/solution |
Surfactant |
|
3 |
Cetearyl alcohol |
2.00 |
Paste |
Emulsifier |
|
4 |
C12-15 alkyl benzoate |
2.00 |
Liquid |
Smooth feel additive |
|
5 |
Octocrylene |
10.00 |
Liquid |
Sun Screeen |
|
6 |
Butyl methoxydibenzoylmethane |
3.00 |
Liquid |
Sun Screeen |
|
7 |
Tocopherol |
0.50 |
Liquid |
Vitamin E |
|
8 |
Xanthan gum |
0.30 |
Powder |
Thickener |
|
9 |
Magnesium aluminum silicate |
0.70 |
Powder |
Thickener |
|
|
|
|
|
|
|
|
Phase B |
|
|
|
|
10 |
Water |
67.50 |
Liquid |
Diluent |
|
11 |
Glycerin |
4.00 |
Liquid |
Humectant |
|
|
|
|
|
|
|
|
Phase C |
|
|
|
|
12 |
Phenoxyethanol |
1.00 |
Liquid |
Preservative |
|
|
|
|
|
|
|
|
Phase D |
|
|
|
|
13 |
Ethanol |
5.00 |
Liquid |
Diluent |
Adjust the formulation to pH 6.0 – 7.0 with a solution of citric acid. Fragrance may be added with Phase D.
Total batch 100.0 grams
In a suitable formulation vessel and under steady mixing add in numerical order, mix and heat all ingredients in Phase A to 80-85°C until uniform. Heat Phase B ingredients in a separate vessel to 80-85°C and add to Phase A while mixing. Allow the resulting emulsion to cool while mixing. Avoid incorporation of air. Homogenize or mix very briskly with a suitable mixer or homogenizer at approx. 55°C. Stir while cooling to 40°C and add phase C and phase D one after another. Stop stirring at 30°C and let stand overnight.
All ingredient amounts are given assuming the ingredients were supplied 100% pure. Formulators are advised to measure the total active mass of their ingredients and adjust the composition with water.
This document was prepared by our technical advisors. Visit Formula Scan for additional formulations