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Vitamin C serums, blended fresh the day you order.

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Vitamin C serums, blended fresh the day you order.

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C20 Ferulic L-Ascorbic Acid Serum 3-Pack

C20 Ferulic L-Ascorbic Acid Serum 3-Pack

Our Price $49.99 USD
Actual Price  $74.97 USD Our Price  $49.99 USD
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★★★★★ 4.9 17 reviews

Three bottles of our bestselling C20 Ferulic. Buy 2, get 1 free.

  • Three fresh-blended bottles, pay for two
  • Sealed spares keep for months in the fridge
  • Every bottle hand-dated so you can see its freshness
  • Fragrance-free and oil-free
20% L-Ascorbic Acid + Ferulic3 × 1 fl oz (30 ml)pH 2.5-3All skin types
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30-Day Money-Back Guarantee

If a NuFountain serum isn't right for you, contact us within 30 days of delivery and we'll refund you in full. You don't need to return the bottle.

Reviews

Customer Reviews

Based on 17 reviews
88%
(15)
12%
(2)
0%
(0)
0%
(0)
0%
(0)
L
Linda
Great Product

Been using this product for years! Works great and reasonably priced. Always arrives quickly after placing order.

G
Gayatri
Great product at a great price

I love the C20 Ferulic L-Ascorbic Acid Serum the best of all NuFountain's products. It gives me the benefit of Vit C without the burning sensation. Much easier on my chapped skin in winter.

S
Sheri
Best vitamin c serum! Works like a charm and is way less expensive than most out there

Best vitamin c serum! Works like a charm and is way less expensive than most out there. Thank you!!!

D
Dariusz
Long time customer

My wife swears by it! Have been a long time customer. Thank you!

A
Anonymous
Perfect formula at a reasonable price

I’ve been using the L ascorbic acid form of Vit C with ferulic acid from various brands including the very expensive one. This one does the job at a decent price and is always shipped fresh.

Just want to try one? Add a single bottle for $24.99 instead.
View the single bottle

Three bottles for the price of two. Our original 20% L-ascorbic acid serum, boosted with ferulic acid and hyaluronic acid. Blended the day you order and hand-dated — so the vitamin C reaches your skin at full strength, not months past its prime. Stock up, keep the extras refrigerated, and never run out of fresh vitamin C.

  • Buy 2, get 1 free — the best value on this serum
  • Each bottle blended fresh & hand-dated the day it ships
  • Refrigerate the spares to keep them at peak potency
  • Brightens dullness and helps target dark spots over time

Stock up without losing freshnessEach of the three bottles is blended fresh and hand-dated. Keep unopened bottles refrigerated and they'll stay at peak potency until you're ready for them.

Blended fresh to order
Hand-dated bottle
Made in the USA
0★ from 17 reviews
The NuFountain difference

Most vitamin C is already fading before you open it

L-ascorbic acid is the most studied, most effective form of vitamin C — and the least stable. Once it's mixed, it slowly oxidizes into a form your skin can't use. That's why a serum bottled months ago on a warehouse shelf isn't the same as the day it was made.

Typical shelf serum

  • Mixed weeks or months before you buy it
  • No way to know how old the vitamin C really is
  • Potency quietly drops as it oxidizes
  • Often padded with fillers and fragrance

NuFountain C20 Ferulic 3-Pack

  • Blended the day your order ships
  • Hand-dated so you see exactly how fresh it is
  • Full 20% potency when it reaches your skin
  • Short, transparent ingredient list — nothing you don't need
What it does

One clean serum, three jobs

Vitamin C is one of the best-studied ingredients in skincare. Here's what consistent use of an active L-ascorbic acid serum supports.

Brightens & evens tone

Helps interrupt excess pigment so dark spots, sun marks and dullness gradually give way to a more even, lit-from-within look.

Supports firmness

Vitamin C is a key cofactor in your skin's own collagen production — which, with time, helps soften the look of fine lines.

Antioxidant defense

Ferulic acid works alongside vitamin C to help neutralize free radicals from pollution and daylight before they age skin.

What's inside

Four actives. Nothing to hide.

No fragrance, no oils, no long list of fillers — just a focused formula built around active L-ascorbic acid.

20%

L-Ascorbic Acid

The pure, active form of vitamin C — the one with the deepest research behind brightening, firmness and antioxidant protection.

+

Ferulic Acid

A plant antioxidant that helps stabilize vitamin C and amplifies its defense against environmental stress.

+

Hyaluronic Acid

Draws in moisture so the serum hydrates and cushions rather than leaving skin tight.

+

Panthenol (Pro-Vitamin B5)

Soothing and conditioning — helps keep an active serum comfortable on daily use.

C20 Ferulic Vitamin C Serum — 3-Pack ingredients

Full ingredient list

Purified Water, 20% L-Ascorbic Acid, Ethoxydiglycol, DL-Panthenol, Glycerin, Magnesium Sulfate, Ferulic Acid, Sodium Hyaluronate, Sodium PCA.

pH 2.5–3Fragrance-freeOil-free1 fl oz (30 ml)
What to expect

Real results run on consistency

Vitamin C rewards daily use. Here's an honest timeline — individual results vary, and sunscreen every morning is what protects the progress.

Weeks 1–2

First glow

Skin often looks a little brighter and more hydrated as it gets used to the serum.

Weeks 4–6

Tone evens out

With daily use, dullness fades and skin tends to look clearer and more uniform.

Weeks 8–12

Deeper change

This is where dark spots and fine lines typically show their most visible improvement.

How to use

Four steps, morning or night

1

Cleanse

Start with clean, dry skin.

2

Apply 5–6 drops

Pat gently over the face and neck. A mild, warm tingle is normal at first.

3

Let it absorb

Give it a minute to dry before your next step.

4

Moisturize + SPF

Follow with moisturizer, and always sunscreen in the morning.

New to vitamin C? Start every other day and build up. Patch test first if your skin is sensitive. Keep the cap tight and store in a cool, dark place — refrigerate unopened bottles. If the serum turns deep amber, it has oxidized and it's time for a fresh one.
Protect your results

Vitamin C works best with daily sunscreen

We don't sell sunscreen — so this isn't an upsell. It's the single most important thing you can do to protect what your serum is working toward, and it's worth getting right.

Without daily SPF

  • UV light breaks vitamin C down and undoes your brightening
  • New dark spots and sun damage keep forming
  • Collagen breakdown speeds up, so fine lines deepen
  • Your serum is left fighting an uphill battle

Vitamin C + daily SPF

  • Locks in and protects your brightening progress
  • Helps stop new dark spots before they start
  • Guards the collagen your serum is helping build
  • The two work together for visibly better results

What to look for in a sunscreen

Broad-spectrum

Look for the words “broad-spectrum” — it protects against both UVA (aging) and UVB (burning) rays.

SPF 30 or higher

SPF 30 blocks about 97% of UVB. Go higher if you're outdoors a lot — just don't drop below 30.

Every single morning

Apply as the last step of your morning routine, over your serum. Reapply every two hours in direct sun.

A texture you'll wear

Mineral (zinc oxide, titanium dioxide) or a modern chemical filter — pick one that feels good so you use it daily.

Reviews

Loved by fresh-serum converts

0
☆☆☆☆☆
17 verified reviews

Customer Reviews

Based on 17 reviews
88%
(15)
12%
(2)
0%
(0)
0%
(0)
0%
(0)
L
Linda
Great Product

Been using this product for years! Works great and reasonably priced. Always arrives quickly after placing order.

G
Gayatri
Great product at a great price

I love the C20 Ferulic L-Ascorbic Acid Serum the best of all NuFountain's products. It gives me the benefit of Vit C without the burning sensation. Much easier on my chapped skin in winter.

S
Sheri
Best vitamin c serum! Works like a charm and is way less expensive than most out there

Best vitamin c serum! Works like a charm and is way less expensive than most out there. Thank you!!!

D
Dariusz
Long time customer

My wife swears by it! Have been a long time customer. Thank you!

A
Anonymous
Perfect formula at a reasonable price

I’ve been using the L ascorbic acid form of Vit C with ferulic acid from various brands including the very expensive one. This one does the job at a decent price and is always shipped fresh.

Good to know

Questions, answered

Will all three bottles stay fresh?
Yes. Each bottle is blended fresh and hand-dated, and unopened bottles keep their potency for months in the refrigerator. Open one at a time and use it within about three months of opening.
What makes a “fresh” vitamin C serum different?
L-ascorbic acid is highly effective but unstable — it oxidizes over time, especially once mixed into water. Because we blend each bottle the day it ships and hand-date it, the vitamin C reaches your skin at full strength instead of partway through its decline.
How is the C20 Ferulic different from the original C20?
Both use 20% L-ascorbic acid. The Ferulic version adds ferulic acid for extra antioxidant defense plus hyaluronic acid and panthenol for more hydration and comfort — a great pick if you want a bit more cushion and everyday resilience.
Will it sting or tingle?
A mild, warm tingle when you first apply is normal with active vitamin C at this strength. If you're new to it or have sensitive skin, start every other day and patch test first. Persistent irritation means it's not the right strength for you — try our gentler C10 or C15 MAP.
How should I store it, and how long does it last?
Keep the cap closed and store in a cool, dark spot; refrigerate unopened bottles to extend freshness. Once opened, use it within about three months. A deep amber color is your signal it has oxidized and it's time for a fresh bottle.
When should I apply it?
Most people use it once daily on clean skin, morning or night. If you use it in the morning, always follow with a broad-spectrum sunscreen — it's what protects the brightening results your serum is working toward.
What if it doesn't work for me?
You're covered by our 30-Day money-back guarantee — no need to return the bottle. If you're not happy, contact us for a full refund.
Zero risk

Try it for real. If it's not for you, we'll refund you.

We stand behind every fresh-blended bottle with a 30-day money-back guarantee — no returns required. That's how confident we are in what "fresh" does for your skin.

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