You can own genuinely good products and still get mediocre results from them, because the order you apply them in changes how well each one actually works. The American Academy of Dermatology puts it plainly: the sequence of your routine affects how effective your products are, not just how it feels to use them.
The general rule: thinnest to thickest
The AAD’s guidance comes down to a simple structure: cleanse first, then treat, then moisturise and protect, then makeup if you wear it. Within the “treat” step, the finer rule is to go from the thinnest, most watery products to the thickest, richest ones. A watery serum applied after a heavy cream can’t absorb properly, it just sits on top and does very little.
Where hyaluronic acid actually belongs
This is one of the most commonly reversed steps we see. Hyaluronic acid works by drawing water in, so it needs to go on damp skin, right after cleansing, before anything else. Put it on dry skin, or apply it after a moisturiser has already sealed the surface, and it has far less water nearby to pull from. Follow it with your moisturiser within a minute or two, so the water it just drew in gets locked in rather than evaporating off.
Where retinol (or bakuchiol) belongs
Active treatments like retinol go on clean, dry skin, before moisturiser, so they can penetrate properly rather than being blocked by a layer of cream. This is also the step where the AAD’s caution about overuse matters most: layering multiple strong actives in the same step, several exfoliating acids plus retinol in one routine, for example, is a common way routines end up irritating skin rather than improving it. Introducing one active at a time, and giving skin time to adjust, matters more than most people expect.
Morning versus evening
Sunscreen goes last in a morning routine, applied after moisturiser, as the final protective layer against UV damage, not mixed in earlier in the stack. In the evening, that step is replaced by whatever treatment you’re using instead, since there’s no UV to protect against overnight.
Why “the right order” still isn’t the same for everyone
Even with the order right, the ingredients themselves still need to match your skin. The AAD’s own guidance stops at sequence, it doesn’t tell you which actives your skin can actually tolerate, or which ones are worth the layering in the first place. That’s the part personalisation actually solves.
Take the free assessment and get a routine built around the ingredients that fit your skin, in the order that actually lets them work.
