Science
Mechanism of Action
Upon topical application, Trioctyldodecyl borate aids in smoothing and softening the skin by forming a protective layer on its surface. It also acts as an antimicrobial agent, assisting in controlling the growth of microorganisms. As a triester, it readily hydrolyzes when exposed to water, yielding boric acid and 2-octyldodecan-1-ol. Its hydrolysis product, boric acid, is recognized for its roles as a preservative booster, pH adjuster, emulsifier, and for possessing mild anti-inflammatory characteristics.
Research
Clinical Evidence
Insufficient-data confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Trioctyldodecyl borate is a liquid that readily hydrolyzes to boric acid and 2-octyldodecan-1-ol when in contact with water. This hydrolysis reaction is accelerated under both acidic and strongly basic pH conditions. To maintain stability, formulations should ideally utilize aprotic or non-aqueous solvent systems.
Conflicts
- water (leads to hydrolysis)
- acidic conditions (accelerate hydrolysis)
- strongly basic conditions (accelerate hydrolysis)
Safety
Safety Profile
Trioctyldodecyl borate is prohibited for use in cosmetic products under the EU Cosmetics Regulation. Furthermore, California's Assembly Bill No. 496 will ban the manufacture, sale, and distribution of cosmetics containing this and other boron substances starting January 1, 2027, citing potential health risks. While the CIR Expert Panel concluded that Sodium Borate and Boric Acid (its hydrolysis products) are safe up to 5% concentration, they advised against their use on infant or injured skin. The SCCS has indicated that borates are expected to exhibit toxicological properties similar to boric acid, which is classified as a Carcinogenic, Mutagenic, or Reprotoxic (CMR) category 1B substance. EWG Skin Deep highlights 'High' concern for Use Restrictions and 'Low_Moderate' for Developmental and Reproductive Toxicity, aligning with the regulatory bans and scientific opinions. Given its classification upon hydrolysis, it is not recommended for use during pregnancy.
Your Skin
Skin Compatibility
Our Assessment
Verdict
This ingredient is unequivocally unsuitable for cosmetic formulations due to significant safety concerns, including its classification as a potential CMR 1B substance upon hydrolysis and its prohibition in major global regulatory markets like the EU and California.
Related
Similar Ingredients
Finding similar ingredients…