Questions sur TIRTIR Sérum Niacinamide 20% 30ml

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Q1: What are its key ingredients?

A: 20% niacinamide and 2% alpha-arbutin, with glutathione, retinol and zinc PCA, according to the brand.

Q2: When should I use it, morning or night?

A: In the evening. The serum contains retinol, so sunscreen is applied during the day.

Q3: Is it fragrance-free?

A: Yes. Fragrance is not listed in the ingredients.

Q4: Who is it best for?

A: Combination and oily skin.

Q5: Does it contain retinol?

A: Yes. Retinol is listed in the ingredients.

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