Good Genes All-In-One AHA Lactic Acid Treatment

Sunday Riley Good Genes All-In-One Lactic Acid Treatment is the serum people reach for when skin looks tired, uneven and textured all at once. Purified-grade lactic acid exfoliates the dull surface layer while hydrating it, targeting the look of pores, dark spots, fine lines and hyperpigmentation in a single leave-on step.

What it actually does

• Exfoliates and hydrates at the same time. Purified lactic acid smooths texture, improves the look of fine lines and wrinkles, and visibly clarifies blemishes — while adding hydration instead of stripping it.
• Brightens discolouration. Licorice and lemongrass work on the appearance of dark spots and uneven tone.
• Soothes as it resurfaces. Prickly pear extract calms the look of surface redness, which helps sensitive skin tolerate the acid.
• Suits nearly every skin type. The brand positions it for normal, dry, combination and oily skin — from blemish-prone to dry and sensitive.
• Clean credentials: vegan, gluten-free, cruelty-free, recyclable packaging, and free of parabens, mineral oil, sulfates and other common exclusions, per Sunday Riley.
• Brand-reported results: in profilometry testing, all participating women reported visibly smoother, more radiant skin with reduced-looking lines after application.

How to use

• As a daily serum: apply one to two pumps to clean, dry skin, morning or evening, early in your routine, and leave on.
• As a mask for sensitive skin: apply one to three pumps, leave for 15 minutes, rinse well and pat dry.
• Sunday Riley suggests layering it over one of its treatment oils for extra brightening — and notes oily or combination skin may not need a moisturiser afterwards.

Is it right for you?

Questions

Can sensitive skin use a lactic acid treatment?

Lactic acid is among the gentler AHAs, the formula includes soothing prickly pear extract, and Sunday Riley offers a sensitive-skin method: use it as a 15-minute rinse-off mask instead of a leave-on. Patch test first and build up frequency gradually.

Morning or night?

Either — the brand says both work, applied towards the start of your routine. If you use it in the morning, SPF afterwards is non-negotiable; honestly, with any exfoliating acid, daily SPF should be part of the deal regardless.

How long does delivery take?

Delivery takes 3 to 21 working days, depending on availability. In-stock items arrive sooner; sourced-to-order items take longer.

How can I pay?

Credit card, debit card, Instapay and mobile wallets. Cash on delivery isn't available.

What if my order arrives damaged or expired?

Report it within 1 day of delivery with a photo. Defective, damaged or expired items qualify for a refund to your original payment method within 15–30 days once verified. Other returns aren't accepted.