CLEARSTEM's Milky Vibrance-C Serum: A Stable Vitamin C for Acne-Prone Skin, With a Catch on Scent

CLEARSTEM, a US brand known for products aimed at both breakouts and ageing, launched its first vitamin C serum, Vibrance-C, on 4 May 2026. We are covering it now because it had not appeared on our site and it has since built up a review base on the brand's store.

The serum is a 40 ml milky pump formula built on 3-O-ethyl ascorbic acid, a stabilised vitamin C derivative that comes second on the ingredient list. CLEARSTEM does not publish a percentage, so it cannot be compared directly with serums that state a strength. The brand's pitch is that it fixes five common complaints about vitamin C: irritation, smell, texture, stability and pore-clogging ingredients. It also says no refrigeration is needed. Those are the brand's claims, and its launch post cites no study for them.

The other ingredients it highlights are a gallic acid derivative, which it says calms temporary redness, and bisabolol, which it describes as soothing. The list also includes oat bran extract, sea buckthorn seed oil, hyaluronic acid and tocopheryl acetate.

One detail deserves a closer look if you have reactive skin. The brand lists no synthetic fragrance among its exclusions, but the full ingredient list includes orange and tangerine peel oils, limonene, vanillin, maltol and raspberry ketone. These read like a scent system, and the launch post does say the serum smells clean and refreshing. Whether or not they count as synthetic, a person who avoids fragranced products may still want to skip it or patch test first.

Its directions call for four pumps across the face, neck and chest, up to twice a day, with sunscreen after morning use. The brand store shows a rating of 4.8 from 150 reviews and a price of 98 US dollars. We did not find an Indian listing, so it appears on our site with the price as NA.