I was so excited to treat myself to this serum, but was quickly disappointed. It oxidised badly whenever I wore it, under moisturiser and foundation or just foundation alone (as it is quite moisturising itself), making me look like I had orange tan foundation on - not a preferred look of mine as I’m pale and am fastidious about shade matching. It might have interacted with different moisturisers/SPF I used over the month I trialled it, as it was worse on some days than others, but I couldn’t work out the pattern. I tried using it at night instead, and this way I woke up smelling of fake tan. I read up on this and it seems one of the key chemicals in c-firma degrades with exposure to light and air into an ingredient found in fake tan. Yuck. That’s £67 down the drain, or rather sitting guiltily, wasted, on the dressing table! Also regarding its effectiveness, I noticed no difference in my skin whatsoever during the period in which I used it.

Love this. Takes away my dark spot. Only product that works for me.

Stings but you know it’s working.

It helped a lot removing my blemishes from previous pimples!

Never used vit C serum before but gladly waited that long and avoided disappointing formulas that came before that one. Bought it as it was recommended by my fav skincare ladies - Caroline Hirons and Anna Newton. So far been using it for a month and it does improve my fussy skin daily dealing with my rosacea, scars, spots, texture. Mixing it with hyaluronic serum and following with herbovire SPF 50. Perfect base for summer.