What is retinol in skincare?
Retinol is an over-the-counter retinoid – a vitamin A derivative that your skin converts into retinoic acid, the biologically active form. Once converted, it binds to receptors in the skin and signals cells to turn over faster, ramp up collagen production and normalise the way pores shed keratin.
That combination is why retinol is one of the most studied active ingredients in modern skincare, and why it sits at the centre of most dermatologist-designed anti-ageing routines. Strengths typically range from 0.01% to 1%, and lower concentrations used consistently often outperform high strengths used sporadically.
What skin concerns does retinol treat?
Retinol works on several concerns at once: fine lines and wrinkles, loss of firmness and crepey texture, uneven skin tone, dark spots and post-acne pigmentation, enlarged or congested pores, and both hormonal and adult acne.
Because it acts on cell turnover rather than on the skin’s surface, results build over weeks rather than days. Most people see visible change between eight and twelve weeks of consistent nightly use, with continued improvement well beyond that.
What ingredients are best paired with retinol?
Pair retinol with hydrating, barrier-supporting ingredients – hyaluronic acid, ceramides, niacinamide, squalane and peptides – to offset the dryness, flaking and redness that can come with faster turnover. Apply it at night, and wear a broad-spectrum sunscreen every morning, since retinol makes skin more sun-sensitive.
Avoid layering it in the same step as AHAs, BHAs or benzoyl peroxide unless your routine has been built to handle it, and introduce it two or three nights a week before going nightly. Want to know which retinol strength suits your skin? Take our Skin Quiz.
What is oily skin?
Oily skin is a skin type in which the sebaceous glands produce more sebum than the skin needs. It shows up as shine through the T-zone within hours of cleansing, visibly enlarged pores, makeup that slides or separates, and a tendency towards blackheads and congestion.
Sebum itself is not the enemy – it carries vitamin E to the surface, keeps the barrier supple and helps oily skin hold its structure, which is why it often shows fine lines later than dry skin does.
What causes oily skin?
Genetics and androgen activity are the primary drivers of how much sebum your glands produce. Heat and humidity increase output measurably, and hormonal fluctuations across the monthly cycle, pregnancy or puberty shift it again.
Stress, a diet heavy in refined carbohydrates, and – counter-intuitively – over-cleansing with stripping foams or alcohol-based toners all push oil production up, because skin compensates for a damaged barrier by making more.
What ingredients are best for oily skin?
Look for salicylic acid (a BHA that is oil-soluble, so it clears inside the pore), niacinamide and zinc to regulate sebum, clay such as bentonite or kaolin for weekly absorption, and retinoids or azelaic acid to normalise how pores shed.
Do not skip hydration: lightweight humectants like hyaluronic acid and glycerin, plus non-comedogenic squalane or jojoba oil, keep the barrier intact so the skin stops over-compensating. Skip heavy occlusive balms and high-alcohol toners. Take our Skin Quiz to get the balance right for your skin.
