How can I tell if a product will cause acne? Episode 155
Can a patch test predict acne? Janelly asks…I would like to know if patch testing a product for acne can really work. I see this concept mentioned a lot on Reditt as a way to test if a new skincare product will cause acne. That’s a great question but patch testing for acne does NOT work. […]Support the show (https://www.patreon.com/thebeautybrains?fan_landing=true)
