Some By Mi AHA.BHA.PHA 30 Days Miracle Serum 50ml

The Some By Mi AHA.BHA.PHA 30 Days Miracle Serum is a lightweight, fast-absorbing serum built around three families of exfoliating acids and two well-known K-beauty botanicals. The fluid texture sinks in quickly and sits comfortably between your toner and moisturiser, so it slots into a Korean skincare routine without feeling heavy or sticky. The formula has a skin-friendly pH and pairs the acids with hydrating ingredients, so skin tends to feel soft rather than tight after use.

What it does for your skin

This serum gently smooths the surface of the skin and helps keep pores looking clearer over time. AHA, BHA and PHA each work in a slightly different way, while tea tree water and Centella asiatica give the formula a fresh, calming feel that makes regular exfoliation easy to keep up with.

• Refines texture and the look of pores – the acid blend loosens dull, dead surface cells so skin looks smoother and more even.
• Comfortable for blemish-prone skin – tea tree water and Centella asiatica leave a fresh, soothed feel and care for areas that are prone to breakouts.
• Hydration alongside exfoliation – moisturising ingredients help keep skin feeling soft, so you get the benefit of acids without the tight, dry feeling.

Key ingredients

• AHA (Alpha Hydroxy Acids) – water-soluble exfoliants that work on the skin's surface to loosen dead cells, helping with radiance and a more even-looking tone.
• BHA (Beta Hydroxy Acids) – oil-soluble exfoliants that reach into pores to help clear away excess sebum and visible congestion for a clearer-looking complexion.
• PHA (Polyhydroxy Acids) – gentle, larger-molecule exfoliants that work more slowly on the surface and also attract moisture, helping skin feel smooth and hydrated.
• Tea Tree Water – a fresh, purifying botanical water that helps care for blemish-prone areas and keeps skin feeling clean.
• Centella Asiatica Extract – a soothing plant extract that leaves sensitive, stressed skin feeling calm and comfortable.

How to use it

After cleansing and toning, apply a small amount to clean, dry skin and pat it in gently. Follow with a moisturiser to seal in hydration. Start with two or three evenings a week and build up as your skin gets used to it. Because this is an exfoliating serum, use a broad-spectrum sunscreen every morning.

Who it's for

A good match for combination, oily and blemish-prone skin that wants a lightweight daily exfoliating step. If your skin is very sensitive, introduce it slowly and patch test first.

Frequently asked questions

How often should I use this serum?

Begin with two to three evenings a week and increase gradually as your skin adjusts. Daily use is possible for skin that tolerates acids well.

Do I need sunscreen with it?

Yes. Exfoliating acids can make skin more sensitive to the sun, so apply a broad-spectrum SPF every morning.

Where does it go in my routine?

Use it after toner and before your moisturiser. The lightweight texture absorbs quickly and layers well under cream.