amika Smooth Over Frizz-Fighting Treatment is a 60-second, rinse-out anti-frizz treatment used after shampoo and conditioner, formulated around glycolic acid to smooth the hair cuticle and create a barrier against humidity-driven frizz. amika's own clinical testing reports a 73% reduction in frizz immediately after one use, hair that is 2.2 times smoother, and frizz protection lasting up to 72 hours in high humidity -- figures from the brand's own testing rather than independent third-party studies.
- After shampooing and conditioning, squeeze excess water from hair.
- Saturate the mid-lengths and ends with the treatment.
- Leave on for 1 minute, then rinse thoroughly.
- Heat style afterward for the smoothest finish -- air-drying won't necessarily replicate the tested results.
Alongside glycolic and lactic acid, the formula includes water lily root extract and amika's signature sea buckthorn oil, plus coconut oil and aloe for added conditioning. It also relies on cationic conditioning agents (behentrimonium chloride, cetrimonium chloride) and a small amount of silicone (phenyl trimethicone) to help detangle and smooth, so it isn't a silicone-free treatment. The formula is vegan, cruelty-free, sulfate-free, paraben-free, and free of mineral oil, and amika states it's color-safe.
It suits any hair type or texture that frizzes in humidity and wants a quick in-shower step rather than an added leave-in product, though anyone sensitive to AHAs on the scalp may want to patch test first.
