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Petal & Bone · Brand 02 of 08

Vitamin C Serum 12%

★★★★★ 4.9 892 reviews · 18,400 sold

A 12% L-ascorbic-acid serum stabilized with vitamin E and ferulic acid. Brightens uneven tone, fades sun-induced spots, and visibly evens texture in 28 days.

Concern: Glow Skin: Combo / oily Step: Serum AM use
$48
$60 Save $12
Size30ml · 1.0 fl oz
15ml $28
30ml $48
50ml $72
In stock · ships in 1 day
Free shipping over $50
30-day returns even if opened
Cruelty-free always
Vegan formula
What's inside

The three doing the heavy lifting.

C

L-Ascorbic Acid 12%

The most studied form of vitamin C. Brightens, evens tone, fades spots.
E

Vitamin E

Stabilizes vitamin C and reinforces the skin barrier against pollution.
F

Ferulic Acid

Boosts vitamin C's potency 4× and extends its shelf life.
Full ingredient list Aqua, L-Ascorbic Acid (12%), Propylene Glycol, Glycerin, Tocopherol (Vitamin E 1%), Ferulic Acid (0.5%), Sodium Hyaluronate, Panthenol, Allantoin, Centella Asiatica Extract, Camellia Sinensis Leaf Extract, Niacinamide, Sodium Citrate, Citric Acid, Phenoxyethanol, Ethylhexylglycerin.

Free of: parabens, phthalates, sulfates, mineral oil, synthetic fragrance.
How to use

Twice a week, then daily.

Begin with 2–3 drops every other morning for the first two weeks, after cleansing and before moisturizer. After two weeks, you can move to daily use if your skin tolerates it. Always pair with a broad-spectrum SPF.

Patch test firstInner forearm · 24 hours
Best withHyaluronic Drops + Mineral SPF 50
Avoid mixing withDirect retinol on the same morning
Specs & safety

The fine print.

Volume30ml / 1.0 fl oz
FormulationWater-based serum, pH 3.2
Shelf life12 months sealed · 6 months open
StorageCool, dark place — refrigerator preferred
Made inSouth Korea — Petal & Bone Lab
Cruelty-freeLeaping Bunny certified
Pregnancy-safeYes — derm-approved
Reviews · 892 verified

What buyers say.

4.9
★★★★★
Out of 892 reviews · 96% would buy again
Read all 892 →
★★★★★

Texture changed in three weeks.

I'd had stubborn texture on my cheeks for a year. After three weeks of using this every other morning, the surface finally feels smooth. My makeup sits better too.

Mira K. · Combo skin · April
★★★★★

The glow is real.

I'd been a vitamin C skeptic — most felt sticky or burnt. This one absorbs cleanly and the brightness shows up by week two. Repurchased the 50ml.

Yasmin O. · Oily skin · March
★★★★☆

Effective, watch the eyes.

Definitely worked on my dark spots. One ding: it stings a bit if you apply too close to the eye, so I keep it below the cheekbone.

Soo-min L. · Sensitive · March
Pairs perfectly with

Build the AM routine.

Lumière

Soft Foam Cleanser

$24
Olea Botanic

Hyaluronic Drops

$42
Vyrde

Ceramide Moisturizer

$36
Aurora Skin

Mineral SPF 50

$32

Free shipping

On orders over $50

30-day returns

Even if opened

Cruelty-free

Always — by every brand

Derm-vetted

Every formula reviewed