A question from my first Twitter chum, Musicalhouses.
Dear Colin, How can we guess how much retinol there is in a skincare product? It’s quite hard to get a percentage ge since companies don’t disclose this. In particular, I’m looking at the Hada Labo Retinol Lifting and Firming Lotion (Ingredients: water, butylene glycol, glycerine, PEG-20 sorbitan isostearate, caprylic/capric triglyceride, methylparaben, PPG-10 methyl glucose, ether, sodium Hyaluronate, triethanolamine, Carbomer, hydroxyethylcellulose, tocopherol, BHT, disodium EDTA, hydrolyzed collagen, hydrolyzed soy protein, limnanthes alba (meadowfoam) seed oil, retinyl palmitate, helianthus annus (sunflower) seed oil, sodium Everglades Hyaluronate, zea mays (corn oil) thioctic acid, beta carotene), since retinol appears all the way down there in the ingredients list and it doesn’t have the characteristic smell or colour (white to off-white yellow) of most retinol-containing products I’ve used in the past. Also, I’d be interested in knowing any rules of thumb you have for guessing the % of a skincare ingredient given how far up or down the ingredients list it is. Thanks!
Retinol is one of the few so called active ingredients used in cosmetics that actually does something. But as a savy consumer and beauty blogger (see http://musicalhouses.blogspot.co.uk/) Musicalhouses knows you have to have enough to have an effect. Continue reading
Here is an interesting question from Claire
