C-Firma Day Serum, but the product has been relaunched in a very clever format. Following simple instructions, with the C-Firma Fresh Day Serum you mix a liquid serum base with a vial containing 15 per cent L-ascorbic acid powder (the vitamin C powder) to create a fresh, potent serum.
You only need to do it once, to create a serum that’s good to use for six months. It sinks into the skin immediately, ready to be layered with other creams or serums.
Use it as the first step after cleansing every morning, and it will crank up your skin’s brightness a good few notches.Similarly, the Skinshot Serum by new brand Bloom & Halo also focuses on DIY and fresh ingredients.
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