Kiehl's Powerful-Strength Line-Reducing Concentrate vs Garnier SkinActive Fast Bright Vitamin C Serum
Both made by L'Oréal Groupe. Here's how the ingredients actually compare.
Same parent company
Original
Kiehl's
Powerful-Strength Line-Reducing Concentrate
~$75
Closest match
Garnier
SkinActive Fast Bright Vitamin C Serum
~$15
Ingredient match0%
0 of the top 7 ingredients in Kiehl's's formula also appear in Garnier's, so treat this as supporting evidence rather than proof of an identical formula.
~ Prices are approximate and may have changed. Check the retailer for current pricing.
View ingredient lists
Kiehl's
Cyclopentasiloxane
Ascorbic Acid
Polysilicone-11
Ethylhexyl Palmitate
Dimethicone
Propylene Carbonate
Lauroyl Lysine
Garnier
Aqua / Water
Glycerin
Alcohol
Dipropylene Glycol
Butylene Glycol
Niacinamide
PEG/PPG/Polybutylene Glycol-8/5/3 Glycerin
Ascorbyl Glucoside
Kiehl's and Garnier are both owned by L'Oréal Groupe. When two brands share a parent company, they sometimes develop products with overlapping ingredients, though not always identical formulas. In this case, Garnier's SkinActive Fast Bright Vitamin C Serum shares 0% of its top ingredients with Kiehl's's Powerful-Strength Line-Reducing Concentrate, at roughly $15 compared to $75. Whether that overlap is enough to make the switch is up to you — this page exists so you can judge the actual formula for yourself instead of guessing.
How matching works: We match products by publicly documented parent company ownership. Ingredient overlap is shown alongside each match as supporting context, so you can judge formula similarity for yourself.