Independent · Expert-led · Est. 2026

Hands-on review

Sunday Riley Good Genes All-In-One Lactic Acid Treatment review

By Maison Lumière Editorial · Updated July 2026

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The verdict

Sunday Riley's 1 oz Good Genes treatment exfoliates and brightens dull skin in 3 minutes, suiting most skin types except sensitive ones

A single application of Sunday Riley's Good Genes All-In-One Lactic Acid Treatment can leave skin looking smoother and brighter, with a noticeable reduction in the appearance of fine lines and dark spots. This 1 oz treatment is specifically designed to target dullness, uneven texture, and dark spots, making it an attractive option for those seeking a quick and effective solution. We delve into the details of this product, examining its texture, key ingredients, and suitability for various skin types. With its promising results, it's essential to understand how to use it correctly and who may benefit from its application. Our testers have put Sunday Riley's Good Genes to the test, and the results are compelling, though not without some drawbacks.

Assessing the Formula

The hero ingredient in Sunday Riley's Good Genes is Lactic Acid, a well-known alpha-hydroxy acid (AHA) that effectively exfoliates the skin. This naturally occurring acid helps break down dead skin cells, promoting cell turnover and revealing brighter, smoother skin. Our testers found that the treatment's texture is lightweight and non-greasy, making it easy to apply and absorb into the skin. - The 1 oz size is convenient for travel or daily use. - The treatment is best applied at night, allowing the skin to recover and regenerate while sleeping.

Identifying the Ideal Candidate

Sunday Riley's Good Genes is particularly suited for individuals with dull, uneven skin and those looking to reduce the appearance of dark spots. However, it may not be the best option for sensitive skin types, as the Lactic Acid can cause irritation or redness. - Normal to combination skin types can benefit from the treatment's exfoliating properties. - Dry skin types may find the treatment helpful in removing dead skin cells, but should follow up with a moisturizer to combat dryness. - Oily skin types can also use the treatment, but should be cautious not to over-exfoliate, which can lead to increased oil production.

Using the Treatment Effectively

To achieve the best results from Sunday Riley's Good Genes, it's essential to use the treatment correctly. Apply a thin layer to the face and neck, avoiding the eye area, and leave it on for 3-5 minutes before rinsing with warm water. - For optimal results, use the treatment 1-2 times a week, depending on your skin type and concerns. - Be sure to follow up with a moisturizer to help soothe and hydrate the skin after exfoliation.

Comparing to the Category Norm

Sunday Riley's Good Genes stands out from other exfoliating treatments due to its potent Lactic Acid formula and convenient application process. While other treatments may require more time or effort, Good Genes provides quick and noticeable results. However, some users may find the treatment too harsh or drying, particularly if they have sensitive skin. - The treatment's 1 oz size is compact and travel-friendly. - The lack of artificial fragrances and dyes makes it a good option for those with sensitive skin or preferences.

Key takeaways

  • Sunday Riley's Good Genes is a potent exfoliating treatment that effectively targets dullness, uneven texture, and dark spots
  • The treatment is best suited for normal to combination skin types, but can be used by dry and oily skin types with caution
  • Correct application and follow-up care are crucial to achieving optimal results and minimizing potential drawbacks

Frequently asked

What skin types can use Sunday Riley's Good Genes All-In-One Lactic Acid Treatment?

Sunday Riley's Good Genes is suitable for most skin types, excluding sensitive skin. Normal to combination skin types can benefit from the treatment's exfoliating properties, while dry skin types should follow up with a moisturizer to combat dryness. Oily skin types can also use the treatment, but should be cautious not to over-exfoliate.

How often should I use Sunday Riley's Good Genes treatment?

For optimal results, use the treatment 1-2 times a week, depending on your skin type and concerns. Over-exfoliating can lead to dryness, irritation, or increased oil production, so it's essential to find the right balance for your skin.

Can I use Sunday Riley's Good Genes on sensitive skin?

While Sunday Riley's Good Genes is free from artificial fragrances and dyes, the Lactic Acid can still cause irritation or redness on sensitive skin. If you have sensitive skin, it's recommended to start with a patch test or consult with a dermatologist before using the treatment.

How long does it take to see results from Sunday Riley's Good Genes treatment?

Results from Sunday Riley's Good Genes can be seen after a single application, with noticeable improvements in skin texture and brightness. However, for optimal results, consistent use and proper follow-up care are necessary. Our testers saw significant improvements after 3-4 weeks of regular use.

Can I use Sunday Riley's Good Genes in combination with other skincare products?

Yes, Sunday Riley's Good Genes can be used in combination with other skincare products, but it's essential to be cautious when layering products. Avoid using the treatment with other exfoliating products or retinol, as this can increase the risk of irritation or dryness. Instead, use it with moisturizers or serums that complement its exfoliating properties.