Yes. Most people can use vitamin C and niacinamide in the same routine. Both are common in brightening skincare, and many formulas now include the two together. If your skin is sensitive, the simplest approach is to use one in the morning and the other at night.
Where the warning came from
The idea that these two should be kept apart comes from older chemistry work on niacinamide and pure vitamin C (L-ascorbic acid). Studies that test the pairing directly on skin are limited, so no one can promise how every combination will behave. What matters most is how your own skin responds, and whether the product is well formulated.
Not all vitamin C is the same, either. Pure L-ascorbic acid oxidises easily, which is why many serums use stabilised forms. Our Vitamin C Exosomes Serum uses 3-O-Ethyl Ascorbic Acid and already contains niacinamide in the same bottle.
What each one does
- Vitamin C is an antioxidant. It also interferes with tyrosinase, the enzyme involved in making skin pigment, which is why it is used for dullness and uneven-looking tone.
- Niacinamide (vitamin B3) is thought to slow the transfer of pigment to surface skin cells. It is also popular for shine and the look of pores, often alongside zinc.
How to layer them
- Cleanse your face.
- Apply vitamin C to clean, dry skin and let it absorb.
- Apply niacinamide and press it in.
- Follow with moisturiser.
- In the morning, finish with sunscreen.
The simpler option
If layering feels like too much, split them: vitamin C in the morning under sunscreen, and niacinamide in the evening. You still get both in your week without adding a step.
Do you need both?
Often, no. Choose by your main concern:
- For dullness, dark spots and post-acne marks, start with vitamin C. Our serum already includes niacinamide for tone.
- For shine and visible pores, start with Niacinamide with Zinc PCA Serum.
- If you have both concerns, use both and watch how your skin responds.
If your skin reacts
Add one new product at a time and patch test first. If you notice ongoing stinging, redness or peeling, stop and let your skin settle before trying again more slowly.
This guide is general information, not medical advice. MHR products are cosmetic care and do not treat medical conditions. For persistent, changing or painful skin or scalp concerns, see a qualified doctor or dermatologist.
