Vita B3 Source

TIAM Vita B3 Source is a brightening serum for concerns such as dull or uneven-looking skin tone, dark spots, post-acne discoloration, and excess oil.

With 10% niacinamide and 2% arbutin, the formula focuses on helping skin look clearer, brighter, and more even.

They deliver a powerful dual-action brightening mechanism:
• Arbutin works beneath the surface to help inhibit excess melanin production.
• Niacinamide intercepts melanin transfer before it reaches the visible skin surface.

By targeting discoloration at two distinct stages, this dual formula fades dark spots, post-blemish marks, and overall dullness significantly faster and more effectively than single-ingredient serums.

Yes. It is well suited for the brown or dark discoloration that can remain after acne has healed, including post-inflammatory hyperpigmentation (PIH), which can make the skin tone look uneven.

However, a serum cannot remove indented or raised acne scars where the structure of the skin itself has changed.

Yes. 10% Niacinamide is an optimal, high-potency daily strength that balances efficacy and comfort across tone, texture, and sebum control.

If you have sensitive skin, start with 1–2 drops every other day to observe your skin's response before transitioning to daily use.

Yes, Vita B3 Source can be used on sensitive skin. 

It has completed a skin irritation test with a 0.0% irritation score and is formulated to be gentle on the skin. However, everyone’s skin is different, so we recommend starting with a small amount 2–3 times a week and monitoring how your skin responds. As your skin adjusts, you can gradually increase the frequency of use.

You can use it both morning and night. Niacinamide and arbutin are not ingredients that become unstable simply from daytime use.

If you use the serum in the morning, always finish with sunscreen to help protect your skin from UV-induced discoloration and support your tone-care routine.

About 2–3 drops is enough for the entire face.

Using more will not necessarily improve results and may instead make the product feel sticky or cause pilling.

Yes. TIAM Vita B3 Source can generally be used with most skincare ingredients.

It can be paired with active ingredients such as vitamin C, retinol, and AHA/BHA, as well as hydrating or conditioning ingredients such as hyaluronic acid and peptides, as long as your skin is comfortable with the routine.

If you are combining several potentially irritating actives, you may experience stinging or redness depending on your skin condition. Start slowly, reduce the frequency if needed, or use the products at different times of day.

Yes. You can use it with other products that contain niacinamide.

If you are layering multiple products such as serums and creams, apply them from the lightest texture to the richest. Depending on your skin, you can also split niacinamide products between your morning and evening routines or alternate them.

Results vary depending on your skin type and the degree of discoloration. In some clinical testing, changes related to skin tone have been observed from around 2 weeks, while established dark spots generally require more time.

Rather than expecting an overnight change, use the product consistently for at least 2–4 weeks and continue based on your skin's response.

Yes. If your skin tolerates it well, niacinamide can be part of your long-term skincare routine.

Rather than being a short-term intensive ingredient, niacinamide works best as part of consistent care for skin tone, texture, and oil balance.

Niacinamide does not typically cause purging because it does not speed up skin cell turnover in the same way as retinol or exfoliating acids.

However, if you are new to a higher-strength formula, your skin may show temporary changes while adjusting. If you notice breakouts or irritation, reduce use to once a day or every other day. If the issue continues, discontinue use.