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What-it-does: sunscreen


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 Belei Oil-Free Face Moisturizer CeraVe Am Facial Moisturizing Lotion Spf30 Hourglass Equilibrium Day Fluid Broad Spectrum Spf 30 Isa knox 365 Sun Cream Nia 24 Sun Damage Prevention Uva/Uvb Sunscreen Spf 30 Pa+++ Paula's Choice Extra Care Non-Greasy Sunscreen Spf 50 Pur Cosmetics Cc Cream Supergoop! City Sunscreen Serum Spf 30 Supergoop! Everyday Sunscreen Abib Mild Sunscreen Protection Tube Ahava Beauty Before Age Uplift Day Cream Spf20 Ahava Mineral Radiance Energizing Day Cream Spf15 Alba Botanica Soothing Sunscreen Alba Botanica Very Emollient Kids Sunscreen Alpha-H Daily Essential Moisturiser Spf 50 Aveeno Absolutely Ageless Daily Moisturizer Spf 30 Aveeno Positively Radiant Daily Facial Moisturizer With Broad Spectrum Spf 30 Banana Boat Dry Balance Lotion Spf50 Beauty Blender Selfie Shield Broad Spectrum Spf 38 Dry Oil Primer Black Girl Sunscreen Moisturizing Sunscreen Lotion SPF 30 CeraVe Facial Moisturising Lotion Spf25 (Version Found In Romania) CeraVe Ultra-Light Moisturizing Face Lotion With Sunscreen Spf 30 Charlotte Tilbury Charlotte'S Magic Cream Coola Makeup Setting Spray Organic Sunscreen Spf 30 Coola Organic Spf 30 Full Spectrum 360° Sun Silk Drops Cremorlab Aqua O2 Shield Spf 50 DCL Essential Skin Protection Spf 30 Dermalogica Prisma Protect SPF30 Elave Sensitive Sun Spf30 Eucerin Eucerin Sun Photoaging Control Fluid Spf 50 Eucerin Even Brighter Clinical Pigment Reducing Day Cream Spf 30 Eucerin Sun Creme Sensitive Protect Spf 50+ Eucerin Sun Face Oil Control Dry Touch Spf 50+ Garnier Clearly Brighter Anti-Sun Damage* Daily Moisturizer Spf 30 Garnier Moisture Bomb The Antioxidant Super Moisturizer Spf 30 Glossier Invisible Shield Spf 35 Hourglass Equilibrium Day Fluid Spf 30 Kiehl’s Super Fluid Uv Defense Spf 50+ Kiehl’s Ultra Facial Cream Spf 30 Kiehl’s Ultra Facial Moisturizer Spf 30 L'oreal Loreal Paris Revitalift Bright Reveal Brightening Day Moisturizer Spf 30 La Roche-Posay Anthelios Anti Imperfections Gel Spf 50+ La Roche-Posay Anthelios Anti-Shine Spf50+ La Roche-Posay Anthelios Aox Daily Antioxidant Serum Broad Spectrum Spf 50 La Roche-Posay Anthelios Clear Skin Dry Touch Sunscreen Broad Spectrum Spf 60 La Roche-Posay Anthelios Xl Spf 50+ Dry Touch Gel-Cream Anti-Shine La Roche-Posay Anthelios Xl Tinted Dry Touch Gel-Cream Anti-Shine Spf 50+ La Roche-Posay Cicaplast Baume B5 Spf50 Make prem Blue Ray Sun Gel