Not great.

Nope. Right out of the package, the odor is repellant. Very harsh chemical smell. It has an oily feel to it that is not pleasant. It also produces a slight burning sensation. There are other, much better Vitamin C and HA products out there. Too bad, I use a number of other products from The Ordinary that are excellent.

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Brightens and smoothes but use with precaution

Usage- only a pea size amount and pat only on dry or slightly damp skin. Rubbing may damage skin barrier as it is gritty. Leave and wait for few minutes as it automatically dissolves into the skin. Pros- brightens, fades redness, makes skin softer(just like glycolic acid), plumps the face next morning, increases moisture into the skin. Better barrier friendly than retinal. Cons- sensitive skin should use carefully, very strong active for skin barrier. Not sure about collagen in the long run.

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