How Much Vitamin C Is in Noche Y Dia Serum?
Noche Y Dia Vitamin C Serum combines five sources of Vitamin C in a water-free, oil-based formula made in Spain. Because it is not built around a single ingredient, it is not measured by a single percentage. What it is measured by is results: in an independent clinical study, volunteers saw up to 30% fewer visible wrinkles in 28 days.
Why other serums lead with a percentage
Most Vitamin C serums are water-based and rely on one ingredient, L-ascorbic acid. Water starts breaking Vitamin C down once the bottle is opened, so those formulas push the percentage higher and higher to make up for it. The trouble is that the highest percentages are also the ones most likely to tingle and sting, which is the last thing mature skin needs.
Noche Y Dia took a different path. Leave the water out, protect the Vitamin C in an oil-based formula and a glass bottle, and combine several sources that work together. The result is a serum your skin welcomes every morning and every night.
The five sources of Vitamin C
| Source | What it brings |
|---|---|
| Ascorbic acid | Pure Vitamin C, for a brighter, more even-looking complexion |
| Oil-soluble Vitamin C (ascorbyl isostearate) | A form of Vitamin C made to blend into oils, so it travels with the serum as it absorbs |
| Spanish bitter orange oil | Natural citrus goodness and the serum's signature orange-grove scent |
| Lemon oil | A fresh, radiant boost |
| Kiwi seed oil | Nourishing omegas that leave skin soft and supple |
What matters more than a number
| What you want | What Noche Y Dia delivers |
|---|---|
| Visible results | Up to 30% fewer visible wrinkles and up to 30% firmer-looking skin in 28 days (clinical study) |
| Comfort | Silky, lightweight, no greasy residue (97% of study volunteers) |
| Freshness | Water-free formula in a protective glass bottle |
| Quality | Made in Spain under European cosmetic rules, paraben-free and cruelty-free |
| Confidence | 365-Day Returnless Refund on every order |
Independent clinical study of Noche Y Dia Vitamin C Serum, Vitamin C Face Cream and Vitamin C Concentrate Ampoules, 32 volunteers, conducted by Gaiker and Dr. Goya Analysis in Spain. Individual results vary.
Is a higher Vitamin C percentage better?
Not necessarily. A high percentage in a water-based serum often means more tingling, and it can lose strength once the bottle is opened. What shows in the mirror is a well-built formula your skin can use every day, which is exactly how Noche Y Dia is made.
Why doesn't Noche Y Dia list a percentage?
Because a single number would describe only one of the five sources of Vitamin C in the formula. Our formula was developed in Spain and stays our own. We would rather show you results, and give you a full year to see them on your own skin.
Is it strong enough to make a difference?
Yes. In an independent clinical study of our Vitamin C line, volunteers saw up to 30% fewer visible wrinkles and up to 30% firmer-looking skin in 28 days, and 8 in 10 noticed more hydrated skin in just 14 days. Individual results vary.
What form of Vitamin C does Noche Y Dia use?
Two added forms, pure ascorbic acid and an oil-soluble Vitamin C ester, plus the natural Vitamin C goodness of Spanish bitter orange, lemon and kiwi seed oils.
Five sources of Vitamin C. One silky serum. A full year to decide.
Try the Vitamin C Serum