The organic UVB absorber that quietly holds most sunscreen formulas together
OM-Cinnamate is one of the most widely used organic ultraviolet B absorbers in global sun care manufacturing, found in sunscreen lotions, sprays, daily moisturizers with SPF, and various tinted or decorative products claiming photoprotection. It belongs to the UV and SPF Filters for Cosmetics category, which brings together ingredients responsible for shielding skin and hair from UV-related damage and premature aging. The 10 ml pack size is aimed at home formulators, small-batch cosmetic makers, and anyone running trial formulations before scaling up production.
The filter is most commonly used in sunscreen emulsions, daily SPF creams, lip balms, body and hair sprays, and certain decorative cosmetics where extra photostability of pigments is needed. In industrial practice it is frequently paired with UVA absorbers to achieve broad-spectrum coverage, and one reliable combination is with Uvinul A Plus B 10 ml, which extends protection into the longer wavelength range. It also works well alongside Benzophenone-3 10 g and Benzophenone-1 10 g, allowing formulators to spread the photoprotective load across several chromophores while lowering the individual dosage of each filter.
The ingredient should be added during the cooling phase of an emulsion, at a temperature below 40 degrees, since prolonged exposure to higher heat can degrade the active molecule. Typical working amounts range from 1 to 8 grams per 100 grams of finished base, depending on the target protection level and the presence of other filters in the formula. It blends well with vegetable oils, wax-based and polyglycol emulsifiers, silicones, and common humectants such as glycerin or panthenol. Strong oxidizers and highly alkaline systems should be avoided, as they can reduce the photostability of the finished product.
Storage requires a tightly closed container kept in a cool, dry place away from direct sunlight and heat sources, since ultraviolet exposure and elevated temperatures gradually reduce the compound's activity over time. The small 10 ml format is convenient for bench-scale testing of different concentrations, comparing filter combinations, and preparing pilot samples before committing to a full production run.
Trial lightweight facial sunscreen fluid
Distilled water 58 ml
Squalane oil 7 g
Emulsifying wax 6 g
OM-Cinnamate 4 g
Benzophenone-1 2 g
Glycerin 3 g
Broad-spectrum preservative 1 g
Heat
the water phase and the oil phase with emulsifying wax separately to around 60
degrees, then combine them while stirring steadily until a smooth emulsion
forms. Cool the mixture down to about 38 degrees before adding OM-Cinnamate,
Benzophenone-1, glycerin, and the preservative, mixing thoroughly until fully
uniform. Transfer the finished fluid into a clean container and let it stabilize
at room temperature for a few hours before running initial protection tests on
a small sample area.