At a glance
Texture — Lightweight, silky serum
Key Active — 3-O-ethyl ascorbic acid 10%
Best For — Sensitive, reactive, rosacea-prone skin
Price Tier — $$$
What stands out
For skin that cannot tolerate real vitamin C, this is a sensible option.
3-O-ethyl ascorbic acid is stable and does not need the low, stinging pH that L-ascorbic acid requires. Pair it with colloidal oatmeal, licorice root, green tea, and feverfew — all soothing — and you have a vitamin C that reactive skin can generally handle.
It is fragrance-free, and the whole formula is built around not provoking anything.
Of the common derivatives, 3-O-ethyl is one of the better-studied. That is faint praise, but it is honest praise.
Watch out for
It is not pure vitamin C, and the name does not say so. "10% Vitamin C" reads exactly like the CeraVe or L'Oréal products that contain the real thing. It does not.
The evidence is thinner. Derivatives must convert in the skin, and the data that they do so usefully is much weaker than for L-ascorbic acid.
$50 is a lot for a derivative — CeraVe's 10% pure L-ascorbic acid costs half that. You are paying for gentleness, and that is a legitimate thing to pay for, but be clear that is the trade.
Some users see very little brightening, which is the expected outcome of a genuinely mild formula.
Key ingredients
💧 Squalane — hydrates
🍊 Vitamin C (10% THD) — brightens
🌿 White Tea Extract — repairs + soothes
Full ingredient list
Formulation Notes
The formulation goal here is tolerability, and every choice supports it: a derivative that works at neutral pH, a soothing botanical complex, no fragrance, a silky non-occlusive base.
This is a defensible product for the person it is designed for. It is a poor value for anyone whose skin could tolerate L-ascorbic acid, because they would get more from a cheaper serum.