-
Sunscreen
Hi! I just wanted to get your thoughts on a sunscreen formulation that I am working on. Here’s my proposed formulation. I haven’t tried compounding it yet:
-
Zinc Oxide (microfine) - 10.0%
-
Titanium Dioxide - 3.00%
-
Vitamin E Acetate - 0.50%
-
Avobenzone - 2.00%
-
Glyceryl Stearate & PEG 100 Stearate - 3.00%
-
HPMC - 0.50%
-
Cetearyl Alcohol - 2.00%
-
Aloe Vera Leaf Extract - 1.00%
-
Simmondsia Chinensis (Jojoba Seed Oil) - 1.00%
-
Dimethicone - 1.50%
-
Glycerin - 3.00%
-
Propylene Glycol - 2.00%
-
Euxyl PE 9010 - 1.00%
-
Caprylyl Glycol - 0.30%
-
Citric Acid - 0.10%
-
Tetrasodium EDTA - 0.20%
-
Water - 72.40%
Could you take a quick look and let me know if everything looks good, or if you have any tips for improving the formula? Thank you!
-
-
1 Reply
-
Get rid of Aloe Vera. Improve your preservative system. If photostability is a concern, replace Vit E acetate (it needs to be converted by your body into an active form, so it won’t protect your product) by a excited state quencher, your UVB protection is too low (if you add octocrylene, you’ll tackle that and protector Avobebzone from catalyic effects of uncoated TiO2). Also, use dispersión of both TiO2 and ZnO for better dispersion (better if you mix different particle sizes), and replace natural oils by esters which will provide better dispersion of inorganic filters andsprradability of the product on the skin.
Log in to reply.