Timeless 20% Vitamin C + E Ferulic Acid Serum pairs 20% L-ascorbic acid with vitamin E, ferulic acid and hyaluronic acid in a water-like serum. Dermatologists and creators have long compared it with SkinCeuticals C E Ferulic as a far cheaper alternative. It suits buyers who want a high-strength pure vitamin C on a budget and tolerate 20% L-ascorbic acid. Caveats: the brand recommends refrigeration and using it within 3-6 months because it darkens as it oxidizes, and Timeless advises stopping use if irritation occurs.

Best for

Budget buyers who want a pure vitamin C serum
Dullness and uneven tone in non-sensitive skin
People curious about a C E Ferulic alternative

What we love

20% L-ascorbic acid with vitamin E and ferulic acid at $27.95 for 1 oz
Fragrance-free, vegan and cruelty-free
Now packaged in glass bottles, per Timeless
Offered in 1 oz, 1.7 oz and 4 oz sizes

Worth knowing

Oxidizes and darkens; Timeless advises using it within 3-6 months and refrigerating it
High 20% strength; some users report burning, and Timeless advises stopping if irritation occurs
Vitamin E and ferulic acid percentages are not disclosed

How it scored

The breakdown.

Five factors, weighted for formulas. Here’s our working.

8.1Great

Beauty score out of 10. Brands can’t pay for placement — ever.

Results30%8.0
Dermatologists and creators often test it head-to-head against SkinCeuticals C E Ferulic; 20% L-ascorbic acid is a proven brightening active, though results depend on keeping it fresh.
Formula & ingredients20%8.2
20% L-ascorbic acid with vitamin E, ferulic acid and hyaluronic acid follows the proven C + E + ferulic template; supporting percentages are undisclosed.
Texture & experience15%6.8
Water-light and fragrance-free, but one Reddit user found it burning and too harsh, and Timeless recommends refrigeration because the serum darkens as it oxidizes.
Value20%9.0
$27.95 for 30 mL is a fraction of the price of the prestige formula it is most often compared with.
Community love15%8.2
Reddit users repurchase it and call it the closest SkinCeuticals dupe, though a minority find 20% L-ascorbic acid too harsh.

Beauty profile

Inside the bottle.

Texture

Water-like, fast-absorbing serum in a glass pump bottle, per Timeless

Format

Serum

Fragrance

Fragrance-free

Size

1 fl oz / 30 ml

Key ingredients

Ingredient encyclopedia →

What’s in it: 20% L-ascorbic acid with alpha tocopherol (vitamin E), ferulic acid, sodium hyaluronate and panthenol; exact vitamin E and ferulic percentages are not stated.

How to use

Apply 1-2 pumps to freshly cleansed face and neck daily (AM or PM) and let it absorb before the next step; follow with SPF in the morning and store in the refrigerator after opening.

Free from (brand-stated)

parabens
sulfates
fragrance
dyes

Claims & certifications

Vegan
Cruelty-free (brand-stated)
Paraben-free
Sulfate-free
Fragrance-free

Full ingredient list (INCI)11 ingredients · key actives highlighted · as listed by the brand

Water,
Ethoxydiglycol,
L-Ascorbic Acid,
Propylene Glycol,
Alpha Tocopherol,
Polysorbate 80,
Panthenol,
Ferulic Acid,
Sodium Hyaluronate,
Benzylalcohol,
Dehydroacetic Acid.

Formulas change. Always check the packaging, and patch-test if your skin is reactive.

Official product page

Creator video reviews

Watch it in action.

Real reviews, try-ons and wear tests from independent creators — verified with TikTok and YouTube and labelled when sponsored.

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What people say

Straight from the source.

Verbatim from Reddit, forums, blogs and the beauty press — linked, so you can read the whole thread.

3 verbatim quotes · 2 positive · 1 critical

r/SkincareAddiction

The two Vitamin C I have purchased multiple times are the Trader Joe's version and the Timeless 20% c + e ferulic acid. The Timeless comes in a great bottle, I actually have cleaned it out and put my TJ's product into it to keep it from oxidizing.

u/SRMJacksonr/SkincareAddiction · 2026-095Source

r/SkincareAddiction

I use Timeless 20% vit C … (closest dupe to Skinceuticals) … Was excited to try TJ, but seems like I'll just stick to Timeless

u/No_Supermarket_8647r/SkincareAddiction · 2026-102Source

r/SkincareAddiction

I just tried Timeless 20% vitamin c serum, and it's burning. It seems to be too harsh

u/ASwagPecanr/SkincareAddiction · 2026-091Source

Price & value

Is it worth it?

Typical price

$27.95

for 1 fl oz / 30 ml

Per ounce

$27.55

DrugstoreMid-rangePrestigeLuxury

About 24% more per ounce than the typical serums we review. Our value score: 9.0/10 for a mid-range pick.

Price checked November 2026 at a non-Amazon retailer. Prices change — retailers show the current one.

Where to buy

Check price on Amazon Buy from the brand$27.95

We may earn a commission when you buy through links on this page. It never affects our scores or what we recommend. How we make money

Community

What members noticed.

Ratings, skin types and the benefits people actually saw — logged on the Benefit Wheel.

No member ratings yet.

Tried it? Your score — and your skin or hair type — helps the next person decide.

Highlighted: what it’s built to do.

Discussion

No discussions yet.

Tried Timeless Skin Care 20% Vitamin C + E Ferulic Acid Serum? Ask a question or share how it’s working for your skin or hair — you’ll be the first.

FAQ

Good questions.

Why should I keep it in the fridge?

Timeless says the serum may darken as it oxidizes and recommends refrigeration to extend potency. It suggests using it within 3-6 months of opening.

Is it a dupe for SkinCeuticals C E Ferulic?

It uses the same trio of L-ascorbic acid, vitamin E and ferulic acid but at 20% vitamin C versus SkinCeuticals' 15%, and without SkinCeuticals' own clinical data. Dermatologist Dr Dray has compared the two directly.

Can I use it at night?

Timeless says it can be used daily, morning or evening, but recommends morning use followed by SPF for best results.

Sources we checked (5)