Gentle Vitamin C Serum — Reddit Reviews
by Dr. Althea
Updated November 10, 2026
Gentle 3-O-Ethyl Ascorbic Acid serum for glow and dark marks; results vary.
What the community says
A low-irritation brightening serum built around 3-O-Ethyl Ascorbic Acid, niacinamide, and lightweight emollients. Redditors reach for it when stronger brightening formulas feel risky, yet some see no visible brightening and quit disappointed.
What this means for you
What people love
Watch out for
Product details
Where to buy
What the science says
The research summarized here is about niacinamide, not the vitamin C in this serum, so it does not directly cover vitamin C 1234. Niacinamide has some evidence for reducing acne, with most studies finding it helped, and for fading dark spots, where all four direct tests showed improvement 12. For anti-aging, niacinamide has some evidence behind firmer skin and better hydration, though only two studies tested it directly 3. Its effect on the skin barrier is not proven yet, since only one study tested it directly 4.
- Niacinamide for acne Some evidence · 17 studies
- Niacinamide for hyperpigmentation Some evidence · 17 studies
- Niacinamide for anti-aging Some evidence · 8 studies
- Niacinamide for skin barrier Not proven yet · 17 studies
Research context, not treatment advice. Studies are about the ingredient, not necessarily this exact product.
How we grade researchFull ingredient list · 20
Dr. Althea Gentle Vitamin C Serum ingredients
Water, Hippophae Rhamnoides Fruit Water, Niacinamide, Propanediol, 1,2-Hexanediol, Camellia Sinensis Leaf Water, Caprylic/Capric Triglyceride, Castor Oil/Ipdi Copolymer, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Tromethamine, Xanthan Gum, 3-O-Ethyl Ascorbic Acid, Adenosine, Disodium EDTA, Allantoin, Bifida Ferment Filtrate, Ethylhexylglycerin, Butylene Glycol, Melaleuca Alternifolia (TEA Tree) Leaf Extract, Caprylyl Glycol
Listed in label order, highest concentration first. Linked ingredients have their own page.
Real Reddit threads — 41 mentions across 13 threads
Dr. Althea Gentle Vitamin C Serum on Reddit, in one place — 13 threads from r/koreanskincare, r/AsianBeauty and 2 more, summarized.
“Dr Althea Gentle Vitamin C Serum!!!”
Positive
“I saw a major difference after just one use of this serum!!”
Positive
“in the morning I could see my actual skin colour on my cheeks for the first time since I was a child”
Positive
“Dr. Althea Gentle Vitamin C Serum - Very gentle.”
Positive
“I feel like it helped a bit with the acne scars on my chest.”
Positive
“I would like to try a stronger vit c serum next.”
Positive
“dr Althea vitamin c is one of my fav since it’s light and doesn’t irritate my skin.”
Positive
“I use the Dr. Althea vitamin C serum and it’s pretty good.”
Positive
“I've used Dr Althea vitamin C serum and it's pretty good too”
Positive
“The Dr. Althea is a nice vitamin C serum but I wouldn’t say it’s a lightening product”
Mentioned
“dr althea vitamin c may genuinely be the reason why my family pointed out my face got a noticeably lighter color”
Mentioned
“very sensitive friendly, i put a dropper-full on my face morning/night and absolutely zero irritation”
Mentioned
“Dr. Althea gentle vitamin c serum (for pigmentation)”
Mentioned
“Need Suggestions or opinions on the products listed below.”
Mentioned
“***Serum***:”
Mentioned
“Dr. Althea Gentle Brightening Vitamin C Serum”
Positive
“UPDATED WEEKLY ROUTINE”
Positive
“Morning ☀️ (Mon-Sat)”
Positive
Dupes & Alternatives
Anua
Azelaic Acid Hyaluron Redness Soothing Serum
Better for Hyperpigmentation
11 shared traits
781 mentions
