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What-it-does: sunscreen

Official CosIng Information


An oil-soluble chemical sunscreen agent that protects the skin from UVB (295-315 nm) with a peak protection at 306 nm. Homosalate is not a strong UV filter in and of itself (gives only SPF 4.3 protection at max. allowed 10% concentration) and it is not photostable (looses 10% of its SPF protection in 45 mins) so it always has to be combined with other sunscreens for proper protection. Its big advantage, though, is that it is a liquid and is excellent for dissolving other hard to solubilize powder sunscreen agents, like the famous Avobenzone.

Regarding Homosalate's safety profile, we do not have the best news. In-vitro (made in the labs) studies have shown that it might have some estrogenic activity. Do not panic, these studies were not conducted on real humans under real world conditions. Still, if you are a 'better safe than sorry' type, be careful when using Homosalate containing sunscreens long-term and full-body.

Show me some proof

  • Couteau, C., et al. "Study of the efficacy of 18 sun filters authorized in European Union tested in vitro." Die Pharmazie-An International Journal of Pharmaceutical Sciences 62.6 (2007): 449-452.
  • Couteau, Céline, et al. "Study of the photostability of 18 sunscreens in creams by measuring the SPF in vitro." Journal of pharmaceutical and biomedical analysis 44.1 (2007): 270-273.
  • Schlumpf, Margret, et al. "In vitro and in vivo estrogenicity of UV screens." Environmental health perspectives 109.3 (2001): 239.
  • Jiménez-Díaz, I., et al. "Simultaneous determination of the UV-filters benzyl salicylate, phenyl salicylate, octyl salicylate, homosalate, 3-(4-methylbenzylidene) camphor and 3-benzylidene camphor in human placental tissue by LC–MS/MS. Assessment of their in vitro endocrine activity." Journal of Chromatography B 936 (2013): 80-87.

Products with Homosalate

Aveeno Protect + Hydrate Lotion 50 Avon Anew Reversalist Complete Renewal Broad Spectrum Spf 25 Day Cream Belei Oil-Free Face Moisturizer CeraVe Am Facial Moisturizing Lotion Spf 30 CeraVe Am Facial Moisturizing Lotion Spf30 CeraVe Am Facial Moisturizing Lotion With Sunscreen Clarins Uv Plus Anti-Pollution Sunscreen Multi-Protection Broad Spectrum Spf 50 Earth Science Almond-Aloe Moisturizer Spf 15+ Epionce Ultra Shield Spf 50 Sunscreen Garnier Ombrelle Complete Sensitive Advanced SPF 60 Garnier Ombrelle Complete Sensitive Advanced Spf30 Garnier Ombrelle Ultra Light Advanced Weightless Body Lotion Spf50+ Hourglass Equilibrium Day Fluid Broad Spectrum Spf 30 Isa knox 365 Sun Cream Kiehl’s Skin Tone Correcting & Beautifying BB Cream SPF 50 L'Oreal Age Perfect Radiant Serum Foundation La Roche-Posay Anthelios Xl Anti-Shine Spf 60 Gel-Cream Neutrogena Ultra Sheer® Liquid Sunscreen Broad Spectrum Spf 70 Nia 24 Sun Damage Prevention Uva/Uvb Sunscreen Spf 30 Pa+++ Olay Professional Prox Age Repair Face Lotion With Sunscreen Spf 30 Paula's Choice Anti-Aging Lip Gloss Spf 40 Paula's Choice Extra Care Non-Greasy Sunscreen Spf 50 Pur Cosmetics Cc Cream Sonrei Sea Clearly® Gel Sunscreen Spf 50 Supergoop! City Sunscreen Serum Spf 30 Supergoop! Everyday Sunscreen Supergoop! Play Body Mousse Spf 50 With Blue Sea Kale Vichy Idéal Soleil Anti-Shine Dry Touch Lotion Spf60 AHC Natural Perfection Moist Sun Cream Spf50+ Pa++++ Abib Mild Sunscreen Protection Tube Aesop Protective Body Lotion SPF 50 Aesop Protective Facial Lotion SPF 25 Ahava Beauty Before Age Uplift Day Cream Spf20 Ahava Mineral Radiance Energizing Day Cream Spf15 Alba Botanica Hawaiian Spray Sunscreen Alba Botanica Soothing Sunscreen Alba Botanica Very Emollient Kids Sunscreen Alpha-H Daily Essential Moisturiser Spf 50 Atoma Broad Spectrum Sunscreen Lotion Spf 50 Baby Aveeno Absolutely Ageless Daily Moisturizer Spf 30 Aveeno Positively Radiant Daily Facial Moisturizer With Broad Spectrum Spf 30 Aveeno Protect + Hydrate Sunscreen 50 For Face Avon Anew Clinical Defend & Repair Multi-Shield Day Cream Spf 50 With Smartrepair Avon Protetor Solar Hidratante Banana Boat Dry Balance Lotion Spf50 Banana Boat Ultra Protect Spf 80 Beauty Blender Selfie Shield Broad Spectrum Spf 38 Dry Oil Primer Black Girl Sunscreen Moisturizing Sunscreen Lotion SPF 30 Bobbi Brown Extra Repair Moisturizing Balm SPF 25 COSRX Shield Fit Snail Essence Sun SPF 50+