Vitamin C serum · $25
Timeless 20% Vitamin C + E Ferulic Serum
A 20% L-ascorbic acid serum with vitamin E and ferulic acid — the same three-active combination used in the most-cited antioxidant serum formulations, at a fraction of the price. The trade-off is stability: this is a fresh product that needs replacing.
Key ingredients
- L-ascorbic acid 20%
- The most-studied form of topical vitamin C. Requires low pH to penetrate, which is also why it stings on compromised skin.
- Vitamin E (tocopherol)
- Works synergistically with ascorbic acid; the pairing is better documented than either alone.
- Ferulic acid
- Stabilises the C+E combination and extends its antioxidant activity.
- Sodium hyaluronate
- Offsets some of the dryness a high-percentage acid serum can cause.
Texture and finish
Thin and watery with a faint hot-dog-water note that some batches develop as they oxidise. It absorbs quickly and layers well, though it can pill under thick sunscreen.
It suits you if
- You want the C+E+ferulic combination without a three-figure price
- Your primary concerns are uneven tone, dullness, or photoprotection support
- Your skin tolerates low-pH products
Skip it if
- Your skin is reactive or rosacea-prone — a THD ascorbate derivative is gentler
- You will not finish a bottle within about three months
- You are new to actives and already using a retinoid
Pros
- Well-known active trio at an accessible price
- Lightweight and easy to layer in the morning
- Noticeably boosts the value of daily sunscreen use
Cons
- Oxidises — turns yellow then brown, and should be replaced when it does
- Low pH can sting on sensitive or freshly exfoliated skin
- Scent is not pleasant, and worsens with age
How to use it
- 1Morning only, on clean dry skin, before moisturizer and SPF.
- 2Start every other day if you are new to vitamin C.
- 3Store away from light and heat; refrigerate if you live somewhere warm.
Where it fits in a routine
First serum step in the morning routine, always followed by sunscreen.
See the dullness routineMore breakdowns
This breakdown is based on publicly available ingredient lists and manufacturer information. It is general skincare information, not medical advice, and it is not a substitute for a dermatologist's assessment of your skin.