Comments on: The Ultimate Guide To Skincare Boosters

By: Gio

Gio — Fri, 29 Mar 2019 13:01:57 +0000

In reply to Rashmi. Rashmi, The Ordinary niacinamide is only for oily skin. If hat's what you have, yes you can layer it under sunscreen. In the evening, alternate between salicylic acid and retinol after cleansing.

By: Rashmi

Rashmi — Fri, 22 Mar 2019 12:36:07 +0000

Hi Gio, I’m a newbie. Can I use a 10% niacinamide serum, the ordinary to layer under my sunscreen. Do i have to use it alone or i need to exfoliate my skin on alternate days using a bha to increase its effectiveness. I m just confused of how to include niacinamide, salicylic acid and a retinol into my regime.

By: Gio

Gio — Thu, 24 Jan 2019 17:59:35 +0000

In reply to Dora. Dora, these boosters are designed to be mixed with serums and moisturisers so I'd stick to that.

By: Dora

Dora — Thu, 10 Jan 2019 16:19:15 +0000

Hi Gio,

Is it ok to mix Paula’s Choice 1% Retinol Booster and 10% Niacinamide Booster together? Will one active cancel the other? What about mixing 15% Vitamin C Booster and Peptide Booster? Is there any chance for hydrolysis to happen?

By: Gio

Gio — Sat, 14 Apr 2018 07:22:44 +0000

In reply to A Golding. A Golding, mixing anything with sunscreen can dilute the SPF. But layering a vitamin C serum under sunscreen will boost its effectiveness, especially if it also contains vitamin E and ferulic acid.

By: A Golding

A Golding — Mon, 09 Apr 2018 17:44:35 +0000

I use Aplha H glycolic acid every other night and 20% vit c (stabilised ) serum every morning straight on skin not mixed with anything. ..is that OK?
Then apply moisturiser and 15 minutes layer I apply a mineral based spf. Dies the vit c dilute the spf or is that just if you mix the 2 together?