What is resveratrol in skincare?
Resveratrol is a polyphenol produced by plants under stress – grapes, berries, peanuts and Japanese knotweed are the main sources. Red wine is where most people first hear of it, though the amounts there are trivial.
In skincare it functions as a potent antioxidant and an activator of sirtuins, proteins involved in cellular repair and longevity. It is well characterised for antioxidant, anti-inflammatory and antimicrobial activity on skin.
What skin concerns does resveratrol treat?
It targets the visible results of oxidative stress: dullness, uneven tone, fine lines and loss of firmness. Its anti-inflammatory action also helps redness and reactive skin.
It has documented skin-lightening activity through tyrosinase inhibition, making it a gentler option for pigmentation than many actives, and a small trial found it reduced facial redness when combined with green tea and caffeine.
What ingredients are best paired with resveratrol?
It is typically used at night, where it complements the repair work skin does while you sleep, and it pairs particularly well with vitamin E, ferulic acid, niacinamide and green tea.
It also combines safely with retinoids and peptides. Because it is unstable in light, look for opaque, air-tight packaging – a resveratrol serum in a clear dropper bottle is not doing much. Take our Skin Quiz.
What is hormonal acne?
Hormonal acne is acne whose timing and pattern track with hormonal activity rather than with cleansing habits or diet alone. It typically appears along the lower face – jawline, chin and upper neck – as deep, tender papules and cysts that flare on a predictable cycle.
It is most recognisable in adult women, where breakouts often arrive in the week before menstruation and settle again afterwards.
What causes hormonal acne?
Androgens – testosterone and DHT in particular – bind to receptors on the sebaceous gland and increase sebum production. When androgen activity rises or oestrogen falls, oil output climbs and follicles clog more readily.
Menstrual cycles, starting or stopping contraception, pregnancy, perimenopause and PCOS are the usual contexts. Stress raises cortisol, which amplifies the same pathway. Persistent hormonal acne with irregular cycles or excess hair growth is worth investigating medically.
What ingredients are best for hormonal acne?
Retinoids are the most effective topical, because they stop the plug forming regardless of how much oil is being produced. Azelaic acid reduces inflammation and the marks that follow, and niacinamide helps regulate sebum.
Salicylic acid keeps pores clear between flares, and benzoyl peroxide targets bacteria in inflamed lesions. Because hormonal acne is driven from the inside, topicals manage rather than cure it – consistency across the whole cycle beats spot-treating during a flare. Take our Skin Quiz.
