Biotherm Blue Therapy Blue Retinol Night Serum 30ml Body Oil Once a week is the

Once a week is the plan

Good for someone who wants fragrance to be present

Unisex room spray

200g in the signature frosted glass jar

Biotherm Blue Therapy Blue Retinol Night Serum 30ml Body Oil Once a week is theA retinol serum that doesn't waste time with a gentle introduction. Biotherm's formulation hits you with the active straight off no stabiliser padding, no slow build promises so this is the nightly thing, not the starter version. 30ml bottle. The texture is thin enough to sink in before moisturiser, but concentrated enough that one pump per night is the sensible dose. Skip it if your skin is already on a retinoid, or cycle it in every other night if