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US 8,911,754 B2Granted
Foamable sunscreen formulation
AssigneeFallien Cosmeceuticals, Ltd.
InventorsDavid J. Milora, Harry Fallick
Life of this patent
Estimating the term…
Abstract
The present application relates to sunscreen formulations, including foamable sunscreen formulations, that comprise zinc oxide and titanium dioxide particles, suitably in the size range of about 1-100 nm. The compositions suitably produce a minimal residual whitening effect when applied to a skin surface.
Claims30
A foamable sunscreen formulation consisting essentially of:
- a) about 1 wt % to about 25 wt % zinc oxide particles having a primary particle size of about 10 nm to about 50 nm;
- b) about 1 wt % to about 25 wt % titanium dioxide particles having a primary particle size of about 10 nm to about 50 nm;
- c) about 0.1 wt % to about 10 wt % emulsion stabilizer;
- d) about 0.1 wt % to about 25 wt % skin conditioner;
- e) about 1 wt % to about 10 wt % emulsifier;
- f) about 0.1 wt % to about 10 wt % suspending agent;
- and
- g) the remainder water,
- wherein the formulation produces a minimal residual whitening effect when applied to a skin surface.
6 more elements
A foamable sunscreen formulation consisting essentially of:
- a) about 9 wt % to about 11 wt % zinc oxide particles having a primary particle size of about 20 nm;
- b) about 2 wt % to about 4 wt % titanium dioxide particles having a primary particle size of about 30 nm;
- c) about 0.5 wt % to about 10.0 wt % emulsion stabilizer;
- d) about 15 wt % to about 25 wt % skin conditioner;
- e) about 2.5 wt % to about 4.5 wt % emulsifier;
- f) about 3.5 wt % to about 5.5 wt % suspending agent;
- g) about 1 wt % to about 2.5 wt % film former;
- and
- h) the remainder water,
- wherein the formulation produces a minimal residual whitening effect when applied to a skin surface.
7 more elements
A foamable sunscreen formulation consisting essentially of:
- a) about 10 wt % zinc oxide particles having a primary particle size of about 20 nm;
- b) about 3 wt % titanium dioxide particles having a primary particle size of about 30 nm;
- c) about 1 wt % microcrystalline cellulose and about 0.2 wt % cellulose gum;
- d) about 16 wt % C12-15 alkyl benzoate, about 1 wt % octyldodecyl neopentanoate, about 1 wt % butyl octyl salicylate;
- e) about 1.2 wt % glyceryl stearate, about 0.5 wt % ceteareth-20, and about 2 wt % polysorbate 80;
- f) about 1.8 wt % polyhydroxystearic acid and about 2.7 wt % methyl methacrylate crosspolymer;
- g) about 0.8 wt % polyurethane-2, about 0.3 wt % polymethyl methacrylate and about 0.6 wt % tricontanyl PVP film;
- and
- i) about 50 wt % to about 60 wt % water,
- wherein the formulation produces a minimal residual whitening effect when applied to a skin surface.
7 more elements
Dependencies are inferred from the claim text.