Sunday Riley Good Genes Lactic Acid Treatment Serum, 1 oz – Exfoliating Brightening & Texture Refining

Good Genes All-in-One Lactic Acid Treatment is a concentrated lactic acid serum that exfoliates dull surface skin to reveal a smoother, brighter complexion.

This serum from Sunday Riley combines a high-purity lactic acid formulation with skin-brightening botanicals to refine texture, soften the look of fine lines, and help fade discoloration over time. Lightweight and fast-absorbing, it works on multiple concerns at once so your routine stays simple: exfoliation, radiance, and visible clarity in one bottle. The formula is free from common irritants and is cruelty-free, aligning with Sunday Riley’s clinically driven, clean-beauty approach.

How quickly will I notice smoother skin?

Many users report an immediate surface smoothing effect after the first application as lactic acid lifts dead skin cells. Ongoing use continues to improve texture and clarity, with more pronounced changes in the weeks that follow.

• Immediate gentle exfoliation for a softer surface feel
• Clinically tested improvement in fine lines within minutes
• Visible refinement with regular use over days to weeks

Can Good Genes reduce dark spots and uneven tone?

The treatment pairs lactic acid with brightening botanicals to help fade hyperpigmentation and even out skin tone. Results build cumulatively—topical acids encourage cell turnover, while additional ingredients support a more uniform complexion when used consistently.

• Targets surface discoloration through exfoliation
• Includes licorice-derived brighteners to help minimize the look of dark spots
• Recommended for ongoing use to see progressive improvement in tone

Is this suitable for sensitive or all skin types?

Good Genes is formulated to be effective across a range of skin types, including those that tolerate gentle acids. Because it contains a concentrated lactic acid, start with lower frequency and patch-test if you have very reactive skin. The formula avoids common irritants, but sensitivity varies person to person.

• Gentler lactic acid compared with stronger hydroxy acids
• Free of fragrance, sulfates, parabens, and common allergens
• Patch-test and introduce gradually for reactive or barrier-compromised skin

How do I fit Good Genes into my skincare routine?

Use this serum after cleansing and before heavier moisturizers or oils, applying a thin layer to clean, dry skin. For daytime use, pair with broad-spectrum sunscreen; for evenings, it can replace or complement other exfoliating steps depending on your regimen.

• Apply to cleansed skin, once daily or as tolerated
• Follow with hydrating serum or moisturizer to support the barrier
• Always use SPF during the day when using exfoliating acids

Who is this for? Good Genes suits anyone seeking a targeted, results-oriented exfoliating treatment that simplifies multiple steps—texture refinement, radiance boosting, and tone correction—into one product. It’s appropriate for those new to acid exfoliation (with gradual introduction) as well as experienced users wanting a reliable lactic acid option that avoids common irritants. If you have active skin conditions or severe sensitivity, consult a skincare professional before introducing concentrated acids.

Ingredients

INGREDIENTS: Botanical Blend [Water/Eau/Aqua, Opuntia Tuna Fruit Extract, Cypripedium Pubescens Extract, Opuntia Vulgaris Leaf Extract, Agave Tequilana Leaf Extract, Arnica Montana Flower Extract, Aloe Barbadensis Leaf Extract, Saccharomyces Cerevisiae (Yeast) Extract, Leuconostoc/Radish Root Ferment Filtrate], Caprylic/Capric Triglyceride, Squalane, Lactic Acid, PPG-12/SMDI Copolymer, Propanediol, Butylene Glycol, Stearic Acid, Dimethicone, Cetearyl Alcohol, Phenyl Trimethicone, Disiloxane, Ceteareth-20, Glyceryl Stearate, PEG-100 Stearate, Stearyl Glycyrrhetinate, Glycyrrhiza Glabra (Licorice) Root Extract, Cymbopogon Schoenanthus (Lemongrass) Oil, Potassium Hydroxide, Phenoxyethanol, Xanthan Gum, Caprylyl Glycol, Chlorphenesin, Sodium Phytate, Citral, Geraniol, Limonene.