Buying a good serum, moisturizer and sunscreen is only half of a skincare routine. The order in which products go on affects how well they spread, how comfortable they feel and, in the case of sunscreen, whether they protect as intended. A product applied in the wrong place can sit on top of a heavier cream without reaching the skin, or disturb a layer that needs to stay intact. The principles behind layering are simple once you understand why each step comes where it does, and they apply whether your routine has three products or eight.
The most widely used guideline is to apply products from the thinnest, most watery texture to the thickest and most occlusive. Watery products such as toners, essences and most serums spread easily on clean skin, while creams and oils form a film that can slow down whatever goes on afterward. Applying a light serum over a rich cream tends to leave it sitting on the surface and rolling off. A typical sequence is cleanser, then toner or essence if you use one, then serums or treatment products, then eye cream, then moisturizer, and finally facial oil if you use it at night. Facial oils are often placed last because they are occlusive, though some people prefer them before moisturizer, and either approach is generally fine. Prescription or targeted treatments, such as a medicated acne gel, are usually applied to clean, dry skin early in the routine so they have direct contact, unless your prescriber gives different instructions. Spot treatments for blemishes can go on after serums and before moisturizer, applied only where needed. When in doubt, follow the directions on the packaging, which may reflect how the formula was designed and tested.
The morning routine is about protection, so it can be short. Start with a gentle cleanser, or simply a rinse with lukewarm water if your skin is dry or sensitive. Next comes any antioxidant serum, such as vitamin C, which many people prefer in the morning to complement sun protection. If you use a hydrating serum with ingredients like hyaluronic acid or glycerin, apply it to slightly damp skin and follow it with moisturizer to help hold that water in. Eye cream, if used, goes on before moisturizer with a light tapping motion along the orbital bone. Then apply moisturizer, and finish with sunscreen as the final skincare step. Sunscreen goes last because it needs to form an even, unbroken film on the surface to deliver its labeled protection, and covering it with other skincare can thin or disrupt that layer. If you wear makeup, let sunscreen set for a few minutes before applying foundation, and press makeup on rather than rubbing. Tinted moisturizers and facial mists with SPF can be layered on top for extra coverage or midday touch-ups, but they are generally not applied thickly enough to replace a dedicated sunscreen.
The evening routine is the best time for active ingredients that can increase sun sensitivity or that degrade in light, such as retinoids. If you wear sunscreen or makeup, many people start with an oil or balm cleanser to dissolve them, followed by a gentle water-based cleanser, an approach often called double cleansing. A facial cleansing brush can be used with the second cleanser, but limit it to a few times a week with light pressure, since frequent scrubbing can irritate the skin barrier. After cleansing, pat the skin dry. If you use a retinoid, many dermatologists suggest applying it to fully dry skin to reduce irritation, using a pea-sized amount for the whole face. Some people with sensitive skin apply moisturizer first and the retinoid over it, sometimes called buffering, which can make it more tolerable at the cost of some potency. Hydrating serums, eye cream and moisturizer follow. Night is also a good time for a richer cream if your skin is dry. Keep the routine consistent for several weeks before judging results, and add only one new product at a time so you can tell what is helping and what might be causing irritation.
Most products do not need long waiting periods between them, and there is little evidence that waiting many minutes improves results. A short pause of about a minute, until the previous layer no longer feels wet, helps prevent pilling, the small flakes that appear when layers rub off together. Sunscreen is the exception worth a little patience, since giving it a few minutes to settle before makeup helps keep the film even. Some combinations are better kept apart, mainly to limit irritation. Retinoids and strong exfoliating acids such as glycolic or salicylic acid can be too much together for many people, so they are often used on alternating nights. Benzoyl peroxide can degrade some forms of tretinoin when applied at the same time, so prescribers often recommend using them at different times of day. Stacking several potent actives at once, such as vitamin C, acids and a retinoid in one routine, increases the chance of redness and stinging without clearly improving results. Signs that a routine is too strong include persistent burning, peeling, tightness or new breakouts. If you have a skin condition such as rosacea, eczema or persistent acne, a dermatologist can help build a routine around your specific treatment.