Paula's Choice 7% 7% Ectoin Booster, 20ml vs COSRX Airy-Light Invisible Sun Stick SPF50+/PA++++
10%Match
Only 10% overlap — quite different formulas
Ingredient Breakdown
Only in Paula's Choice (21)
Caprylic/Capric Triglyceride
C: 1/5I: 0/5emollient
Citric Acid
C: 0/5I: 2/5aha
diisopropyl-adipate
ectoin
glycogen
hydrogenated-olive-oil-unsaponifiables
hydroxyacetophenone
isoamyl-laurate
isopentyldiol
polyglyceryl-3-diisostearate
polyglyceryl-3-polyricinoleate
polyglyceryl-4-oleate
polyglyceryl-6-oleate
polyhydroxystearic-acid
Jojoba Oil
C: 2/5I: 0/5emollient
sodium-phytate
Squalane
C: 1/5I: 0/5emollient
stearalkonium-hectorite
tridecane
triethylhexanoin
undecane
Shared (6)
1-2-hexanediol
coco-caprylate-caprate
Dicaprylyl Carbonate
C: 0/5I: 0/5emollient
Sodium Hyaluronate
C: 0/5I: 0/5humectant
Tocopherol (Vitamin E)
C: 2/5I: 1/5antioxidant
Water (Aqua)
C: 0/5I: 0/5other
Only in COSRX Airy-Light (32)
Allantoin
C: 0/5I: 0/5humectant
aloe-barbadensis-leaf-water
bis-ethylhexyloxyphenol-methoxyphenyl-triazine
bisabolol
butyloctyl-salicylate
caprylyl-glycol
caprylyl-methicone
Ceramide NP
C: 0/5I: 0/5ceramide
ceresin
diethylamino-hydroxybenzoyl-hexyl-benzoate
disteardimonium-hectorite
ethylhexyl-palmitate
ethylhexyl-triazone
Ethylhexylglycerin
C: 0/5I: 1/5preservative
Glyceryl Caprylate
C: 0/5I: 0/5surfactant
methyl-methacrylate-crosspolymer
neopentyl-glycol-diheptanoate
Niacinamide
C: 0/5I: 1/5antioxidant
ozokerite
Panthenol (Vitamin B5)
C: 0/5I: 0/5humectant
polyglyceryl-4-diisostearate-polyhydroxystearate-sebacate
polysilicone-15
propylheptyl-caprylate
silica
synthetic-fluorphlogopite
synthetic-wax
Tocopheryl Acetate
C: 0/5I: 1/5antioxidant
triethoxycaprylylsilane
triethyl-citrate
vinyl-dimethicone-methicone-silsesquioxane-crosspolymer
vinyldimethicone
zinc-pca
When Used Together
SynergyPanthenol + Squalane
[Class rule] Humectants pull moisture in, emollients lock it down. Classic hydration layering.