In partnership with Mecca Cosmetica, we are treating SIR. Loyalty members to the Mecca Replenishing Niacinamide Serum, valued at $55 when you spend $200 or more online or in SIR. stores this weekend. 

Niacinamide, also known as vitamin B3, is a multitasking powerhouse that delivers numerous skin benefits – including antioxidant protection from external stressors that can cause signs of premature ageing like uneven skin tone and fine lines. Supercharged with 15% niacinamide, this highly potent skin corrector helps to improve the appearance of skin, support barrier function and increase hydration. Combined with squalene and allantoin to soothe and to soften, this multifunctional serum will quickly become a new favourite.

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