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View compareOur 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.
- Brightens dullness and helps target dark spots over time
- Ferulic acid boosts antioxidant defense against daily pollution & UV stress
- Hyaluronic acid + panthenol keep it hydrating, not stripping
- Fragrance-free & oil-free — friendly to acne-prone skin
Why the date on your bottle mattersVitamin C oxidizes on the shelf. Yours is blended the day it ships and hand-dated, so you know exactly how fresh it is.
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
- 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
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.
Four actives. Nothing to hide.
No fragrance, no oils, no long list of fillers — just a focused formula built around active L-ascorbic acid.
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.

Full ingredient list
Purified Water, 20% L-Ascorbic Acid, Ethoxydiglycol, DL-Panthenol, Glycerin, Magnesium Sulfate, Ferulic Acid, Sodium Hyaluronate, Sodium PCA.
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.
First glow
Skin often looks a little brighter and more hydrated as it gets used to the serum.
Tone evens out
With daily use, dullness fades and skin tends to look clearer and more uniform.
Deeper change
This is where dark spots and fine lines typically show their most visible improvement.
Four steps, morning or night
Cleanse
Start with clean, dry skin.
Apply 5–6 drops
Pat gently over the face and neck. A mild, warm tingle is normal at first.
Let it absorb
Give it a minute to dry before your next step.
Moisturize + SPF
Follow with moisturizer, and always sunscreen in the morning.
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.
Loved by fresh-serum converts
Questions, answered
What makes a “fresh” vitamin C serum different?
How is the C20 Ferulic different from the original C20?
Will it sting or tingle?
How should I store it, and how long does it last?
When should I apply it?
What if it doesn't work for me?
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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