Skincare

Work from thin to thick, so each layer can still reach the skin. Cleanse first, then apply water-based products such as toners and serums, then your cream, and finally an oil if you use one. In the morning, sunscreen goes on last, before make-up. The reason is simple: a rich cream or an oil forms a film, and a watery serum applied on top of that film mostly sits there instead of absorbing.

They are not interchangeable, because their base decides what they can do. Many people use two of the three: a serum for the active ingredient and a cream or oil to hold moisture in.

UK guidance points at two numbers on the pack: the SPF for UVB and the star rating for UVA. Most people apply far less than the amount the label is tested with, which lowers the protection they actually get. A moisturiser with SPF is thinner and may carry no UVA rating, so it is a light-exposure option rather than a replacement for sunscreen.

Hydration you can feel within days, because a cream or oil works on the surface. Changes in texture and tone take longer, since skin renews itself in roughly four weeks. Give an active product four to eight weeks of consistent use before you decide. With retinol, skin can look worse before it looks better: breakouts and flaking in the first two to eight weeks are common, and improvement usually shows from around week six.

Yes, but split them across the day rather than layering them. Vitamin C fits the morning, before sunscreen. Retinol fits the evening, because it makes skin more sensitive to sunlight. Keep exfoliating acids off the nights you use retinol, at least until your skin has settled. Stacking three actives at once is the most common reason people conclude that their skin is too sensitive for actives at all.

Strength matters less than frequency and formulation. In the EU, face products may contain a maximum of 0.3% retinol equivalent, and packs must carry the statement that the product contains vitamin A and that you should consider your daily intake. Start with two evenings a week, on dry skin, after cleansing. Build up only when your skin stays calm. Encapsulated retinol, where the ingredient is wrapped in a protective shell, is usually gentler at the same percentage.

Products with vitamin A derivatives, such as retinol, retinyl acetate and retinyl palmitate, are the ones usually set aside during pregnancy and breastfeeding. This is about total vitamin A exposure from food, supplements and cosmetics together, which is exactly why EU labels now ask you to consider your daily intake. Cleansers, moisturisers, sunscreen and niacinamide are the calm choices in that period. Check with your midwife, GP or pharmacist about your own routine.

It can be, within limits. Home devices use very short needles and mainly help products absorb slightly better, which is a smaller effect than clinic treatments with longer needles. Hygiene decides most of the outcome: clean the device before and after each use, never share it, and replace the head as the maker advises. Skip active ingredients like retinol and acids straight afterwards. You can find rollers for home use and, if you prefer to work from the inside, supplements for skin, hair and nails.