Paula's Choice
C15 Super Booster
A well-stabilised 15% vitamin C with ferulic acid and vitamin E.
What it is
The ferulic acid and vitamin E here are not decoration — that combination measurably extends how long the ascorbic acid stays active. It comes in a small opaque bottle for the same reason. A more elegant, more expensive alternative to the waterless suspensions.
How to use it: Thinnest to thickest. Give each layer a minute.
Where to buy it
Compared across every retailer we track, with per-unit pricing so different sizes are judged fairly.
Save $2.10 by buying from Dermstore rather than the most expensive stockist.
| Retailer | Price | Per unit | Shipping | Link |
|---|---|---|---|---|
AmazonOut of stock Checked 8 hours ago | $47.95−20% $59.95 | $2.40 / ml | Free | Visit ↗ |
DermstoreCheapest Checked 8 hours ago | $50.05−4% $52 | $2.50 / ml | $4.95, free over $50 | Visit ↗ |
Ulta Beauty Checked 8 hours ago | $52.15 | $2.61 / ml | $5.95, free over $35 | Visit ↗ |
Prices shown are curated sample data, not a live feed — treat them as illustrative and confirm on the retailer’s own site before buying. Routine earns nothing from these links.
What’s in it, and why
1 key active doing the work here.
What it helps with
Routine is educational and is not medical advice. Recommendations are generated from the answers you gave and general dermatological guidance — they cannot account for your full history. For persistent or severe skin conditions, or before starting anything new during pregnancy, speak to a doctor or dermatologist.