If you're even slightly into skincare, you've definitely heard of niacinamide and vitamin C.
But which is better? Do you have to choose? Can they be used together?
The answer is: it depends on your skin and your goal.
Let's clarify scientifically and practically.
What is Niacinamide?
Niacinamide is a form of vitamin B3 and is considered one of the most multifunctional ingredients in dermatology.
What it does for the skin:
- Regulates oiliness
- Reduces the appearance of pores
- Strengthens the skin barrier
- Reduces redness & inflammation
- Helps with post-inflammatory acne marks
- Improves overall skin texture
It is one of the few ingredients that are suitable for:
- oily skin
- acne-prone skin
- sensitive skin
- dry skin (at the right percentage)
What is Vitamin C?
Vitamin C is a powerful antioxidant and a key ingredient for:
- radiance
- hyperpigmentation
- photoaging
There are many forms of it (ascorbic acid, derivatives, etc.).
What it does for the skin:
- Brightens skin tone
- Reduces hyperpigmentation & discoloration
- Boosts collagen synthesis
- Protects against oxidative stress
- Gives a more "lively" appearance to the skin
It is a top choice for:
- dull skin
- photoaging
- uneven skin tone
Can they be used together?
YES, when:
- they are in correct percentages
- they have stable forms
- the formula's pH is correct
Today, the notion that "they can't be combined" is considered outdated.
In fact, their combination:
- improves radiance
- reduces irritation
- offers a more balanced result
How to use them correctly
Morning 🌞
- Vitamin C
- Niacinamide (low–medium percentage)
- Sunscreen (essential)
Evening 🌙
- Niacinamide
- Hydrating & soothing ingredients
If you have sensitive or acne-prone skin, start with niacinamide and gradually add vitamin C.
The Glass Skin Serum combines both ingredients in optimized ratios with hyaluronic acid for comprehensive care.
Final conclusion
There is no "better" ingredient in general.
There is a better choice for your skin.
- If you have oily skin, acne, pores → Niacinamide
- If you have hyperpigmentation, dullness, photoaging → Vitamin C
- If you want a complete result → combination