Beauty of Joseon Daily Relief Sunscreen Broad Spectrum SPF 40

Beauty of Joseon Daily Relief Sunscreen Broad Spectrum SPF 40 Beauty of Joseon Daily Relief Sunscreen Broad Spectrum SPF 40 ingredients explained: Homosalate (9.00%), Octocrylene (5.00%), Ethylhexyl Salicylate (4.50%), Butyl Methoxydibenzoylmethane (2.70%), Water, Butyloctyl Salicylate, Dipropylene Glycol, Diethylhexyl 2,6-Naphthalate, Polymethylsilsesquioxane, Glycerin, Caprylyl Methicone, 1,2-Hexanediol, Silica, Vp/Eicosene Copolymer, Pentylene Glycol, Behenyl Alcohol, Poly C10-30 Alkyl Acrylate, Polyglyceryl-3 Methylglucose Distearate, Cetearyl Alcohol, Glyceryl Stearate, Inulin Lauryl Carbamate, Tromethamine, Carbomer, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Sodium Stearoyl Glutamate, Ethylhexylglycerin, Polyacrylate Crosspolymer-6, Oryza Sativa (Rice) Extract (Rice), T-Butyl Alcohol, Tocopherol Show all ingredients by function Homosalate (9.00%) sunscreen Octocrylene (5.00%) Ethylhexyl Salicylate (4.50%) 0, 0 Butyl Methoxydibenzoylmethane (2.70%) goodie Water solvent Butyloctyl Salicylate Dipropylene Glycol Diethylhexyl 2,6-Naphthalate emollient, solvent Polymethylsilsesquioxane Glycerin skin-identical ingredient, moisturizer/​humectant superstar Caprylyl Methicone emollient 1,2-Hexanediol Silica viscosity controlling Vp/Eicosene Copolymer Pentylene Glycol solvent, moisturizer/​humectant Behenyl Alcohol emollient, viscosity controlling Poly C10-30 Alkyl Acrylate Polyglyceryl-3 Methylglucose Distearate emulsifying Cetearyl Alcohol emollient, viscosity controlling, emulsifying, surfactant/​cleansing 1, 2 Glyceryl Stearate emollient, emulsifying 0, 1 Inulin Lauryl Carbamate surfactant/​cleansing, emulsifying Tromethamine buffering Carbomer Acrylates/C10-30 Alkyl Acrylate Crosspolymer Sodium Stearoyl Glutamate emulsifying, surfactant/​cleansing Ethylhexylglycerin preservative Polyacrylate Crosspolymer-6 Oryza Sativa (Rice) Extract (Rice) abrasive/​scrub T-Butyl Alcohol perfuming, solvent Tocopherol antioxidant 0-3, 0-3 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. Expand to read more As of 2020, Homosalate is permitted to be used up to 10% in the EU and 15% in the US, but the EU is currently considering restricting it to only 1.4% (probably taking effect from 2022). An oil-soluble chemical sunscreen agent that protects skin in the UVB and somewhat in the UVA II range with a peak absorption of 304 nm. Its protection is not strong enough on its own but it is quite photostable (loses 10% of SPF protection in 95 mins) and is often used to stabilize other photo-unstable UV-filters, for example, Avobenzone. It is also often used to improve the water resistance of the products. Octocrylene's safety profile is generally quite good, though a review study in Contact Dermatitis reports an "increasing number of patients with photo contact allergy to octocrylene." Mainly adults with ketoprofen-sensitivity and children with sensitive skin are affected, so if you have a small kid, it is probably better to use octocrylene-free sunscreens. A colorless to light yellowish oily liquid that works as a UVB (280-320nm) sunscreen filter with a peak absorbance at 306 nm. It's not a strong filter in itself, it's always used in combination with other sunscreen agents to further enhance the SPF and to solubilize other solid UV filters. It has a good safety profile and is allowed to be used at a max concentration of 5% both in the US and in Europe (10% is allowed in Japan). The famous Avobenzone. It is a special snowflake as it is the only globally available chemical sunscreen agent that provides proper UVA protection (in the US, new generation sunscreen agents are not approved because of impossible FDA regulations). It is the global gold standard of UVA protection and is the most used UVA sunscreen in the world. It gives very good protection across the whole UVA range (310-400 nm that is both UVA1 and UVA2) with a peak protection at 360 nm. The problem with it, though, is that it is not photostable and degrades in the sunlight. Wikipedia says that avobenzone loses 36% of its UV-absorption capacity after just one hour of what‑it‑does irritancy, com. emollient | solvent skin-identical ingredient | moisturizer/humectant solvent | moisturizer/humectant emollient | viscosity controlling emollient | viscosity controlling | emulsifying | surfactant/cleansing emollient | emulsifying surfactant/cleansing | emulsifying emulsifying | surfactant/cleansing abrasive/scrub perfuming | solvent

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