Bionnex Whitexpert Whitening Cream Face & Neck SPF30+ Versus Kiehl's Better Screen UV Serum SPF 50+ Facial Sunscreen With Collagen Peptide

Bionnex Whitexpert Whitening Cream Face & Neck SPF30+ Versus Kiehl's Better Screen UV Serum SPF 50+ Facial Sunscreen With Collagen Peptide Detailed comparison of Bionnex Whitexpert Whitening Cream Face & Neck SPF30+ versus Kiehl's Better Screen UV Serum SPF 50+ Facial Sunscreen With Collagen Peptide. This chemical sunscreen covers most of the UV range, lighter on the deep UVA that drives aging. Water Homosalate Ethylhexyl Salicylate Cetearyl Alcohol Caprylic/Capric Triglyceride Glycerin Butyl Methoxydibenzoylmethane Inonotus Obliquus Extract Dimethicone C12-13 Alkyl Ethylhexanoate Propylene Glycol Persea Gratissima Oil Cetearyl Olivate Sorbitan Olivate Phenoxyethanol Ethylhexylglycerin Tocopherol Xanthan Gum Carbomer Disodium EDTA Water, Homosalate, Ethylhexyl Salicylate, Cetearyl Alcohol, Caprylic/Capric Triglyceride, Glycerin, Butyl Methoxydibenzoylmethane, Inonotus Obliquus Extract, Dimethicone, C12-13 Alkyl Ethylhexanoate, Propylene Glycol, Persea Gratissima Oil, Cetearyl Olivate, Sorbitan Olivate, Phenoxyethanol, Ethylhexylglycerin, Tocopherol, Xanthan Gum, Carbomer, Disodium EDTA Butyl Methoxydibenzoylmethane 3% Homosalate 7% Ethylhexyl Salicylate 5% Octocrylene 7% C15-19 Alkane Propanediol C12-22 Alkyl Acrylate/Hydroxyethylacrylate Copolymer Sodium Stearoyl Glutamate Butylene Glycol Sclerotium Gum Hydroxyacetophenone Caprylyl Glycol Sodium Starch Octenylsuccinate Glyceryl Stearate Jojoba Esters Helianthus Annuus Seed Wax Hydroxypropyl Starch Phosphate Trisodium Ethylenediamine Disuccinate Sodium Lactate Sodium Hydroxide Polysorbate 20 Polyglycerin-3 Palmitoyl Tripeptide-1 Palmitoyl Tetrapeptide-7 Butyl Methoxydibenzoylmethane 3%, Homosalate 7%, Ethylhexyl Salicylate 5%, Octocrylene 7%, Water, Glycerin, C15-19 Alkane, Propanediol, C12-22 Alkyl Acrylate/Hydroxyethylacrylate Copolymer, Tocopherol, Sodium Stearoyl Glutamate, Butylene Glycol, Cetearyl Alcohol, Sclerotium Gum, Hydroxyacetophenone, Caprylyl Glycol, Sodium Starch Octenylsuccinate, Glyceryl Stearate, Jojoba Esters, Helianthus Annuus Seed Wax, Hydroxypropyl Starch Phosphate, Trisodium Ethylenediamine Disuccinate, Carbomer, Sodium Lactate, Sodium Hydroxide, Polysorbate 20, Polyglycerin-3, Palmitoyl Tripeptide-1, Palmitoyl Tetrapeptide-7 Be the first to review These ingredients are found in both products. Ingredients higher up in an ingredient list are typically present in a larger amount. Also known as Avobenzone, this ingredient is an oil-soluble used to absorb the full spectrum of UVA rays (peak 357 nm). It's one of the most effective UVA filters available but has a major caveat of photostability: avobenzone is susceptible to photodegradation. This means it can lose efficacy when exposed to sunlight without the help of a stabilizing agent. Studies show antioxidants (like vitamin E or vitamin C) and some UV filters (like octocrylene and Tinosorb S) can meaningfully improve its stability in a formulation. The maximum allowable concentration according to regulation is 3% in the US + Canada, and 5% in the EU, Australia, China, Korea, and ASEAN countries. It has a well-support safety profile: a comprehensive 2025 review found minimal toxicity with no evidence of carcinogenicity. Overall, avobenzone is a safe and regulated ingredient used in sunscreen for over 40 years. Carbomer is a synthetic thickening and gelling agent. It's basically the ingredient that gives a lot of serums, gels, creams, and sunscreens their smooth, non-sticky texture. Although legally permitted at very high levels, carbomers are normally used at concentrations below 1%. It also needs to be neutralized to actually thicken, and because it is a large molecule, it doesn't really penetrate the skin barrier. Allergy-wise, the risk is very low. Clinical studies show carbomers have low potential for skin irritation/sensitization even at concentrations up to 100%. A 2024 UK study patch-tested 1,302 patients and found true allergy to the parent group of carbomer to be rare with no confirmed relevant reactions. Cetearyl alcohol is a waxy mixture of two fatty alcohols: cetyl alcohol and stearyl alcohol. It is an emollient and emulsifier. Despite having "alcohol" in its name, it has nothing to do with drying solvent alcohols; the FDA also allows "alcohol-free" products to contain fatty alcohols like this ingredient. It plays several roles in a formula: Typical use levels for this ingredient sit around 1-10% and the Cosmetic Ingredient Review Expert Panel has affirmed safety at concentrations up to 25% in leave-on products. Multiple assessments have found it to be non-irritating and non-sensitizing to most people. However, there have been some cases of allergic contact dermatitis in patients with chronically compromised skin barriers. Cetearyl alcohol has a comedogenic rating of 2 and irritancy rating of 1. Both of these numbers come from the 1989 study that used rabbit ears; a "2" means mildly comedogenic and a "1" means low irritancy. Here's the catch: rabbit skin is more sensitive than human skin and throws a lot of false positives. A 1996 reappraisal found that ingredients rated 1-2 in the rabbit ear tests are generally safe for humans. Remember comedogenic ratings are unable to assess the entire formula of a product or how it will react on