Cetaphil Vitamin C Serum vs RETINOL B3 PURE RETINOL SERUM
16%Match
Only 16% overlap — quite different formulas
Ingredient Breakdown
Only in Cetaphil Vitamin (16)
3-o-ethyl-ascorbic-acid
acetyl-glycyl-beta-alanine
anhydroxylitol
calcium-aluminum-borosilicate
Sunflower Seed Oil
C: 0/5I: 0/5emollient
hydrolyzed-hyaluronic-acid
pancratium-maritimum-extract
Sodium Hydroxide
C: 0/5I: 2/5other
sodium-polyacryloyldimethyl-taurate
tin-oxide
Titanium Dioxide
C: 0/5I: 0/5sunscreen filter
tridecane
undecane
Water (Aqua)
C: 0/5I: 0/5other
xylitol
xylitylglucoside
Shared (6)
Dimethicone
C: 1/5I: 0/5silicone
Glycerin
C: 0/5I: 0/5humectant
Niacinamide
C: 0/5I: 1/5antioxidant
Phenoxyethanol
C: 0/5I: 2/5preservative
Tocopherol (Vitamin E)
C: 2/5I: 1/5antioxidant
Xanthan Gum
C: 0/5I: 0/5other
Only in RETINOL B3 (16)
adenosine
alcoholdenat
ammoniumpolyacryloyldimethyltaurate
Aqua/Water/Eau
C: 0/5I: 0/5other
caprylyl-glycol
Citric Acid
C: 0/5I: 2/5aha
cyclohexasiloxane
glycine-soja-soybean-oil-extract
Parfum
C: 0/5I: 4/5fragrance
Pentylene Glycol
C: 0/5I: 1/5humectant
polysilicone-11
ppg-6-decyltetradeceth-30
Retinol
C: 0/5I: 3/5retinoid
Retinyl Palmitate
C: 0/5I: 1/5retinoid
Sodium Hyaluronate
C: 0/5I: 0/5humectant
trisodium-ethylenediamine-disuccinate
When Used Together
SynergyNiacinamide + Retinol
Niacinamide buffers retinol irritation while enhancing barrier function — ideal layering combination.
SynergyGlycerin + Titanium Dioxide
[Class rule] Humectants under SPF maintain skin hydration and improve sunscreen adherence.