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Lactic acid and theanine

Rated by Lovi · Unbiased, science-based skincare AI trained on real user outcomes · How the Fit score works

Lactic acid and theanine: work well together

Work well together

Use them together in the same routine, applying the exfoliating acid first and the amino acid right after to keep skin calm. Lactic acid clears away dead skin while theanine helps hold onto moisture so skin stays comfortable. If skin feels dry, try using a milder acid or giving it a few more minutes to sink in.

Lactic acid products

Theanine products

Questions and answers

Can you use lactic acid and theanine together?

Lactic acid and theanine work well together to strengthen your skin's hydration matrix and buffering capacity, and you can combine them in mild daily exfoliants or balancing toners. This pairing is especially beneficial for normal to dry, sensitive skin.

Which goes first, lactic acid or theanine?

Lactic acid and theanine work well together in mild daily exfoliants or balancing toners to strengthen the skin's hydration matrix. You can combine them by applying lactic acid first, followed by theanine to help maintain balance.

Are lactic acid and theanine good for sensitive skin?

Yes, lactic acid and theanine work well together to strengthen the skin's hydration matrix, making them beneficial for normal to dry, sensitive skin when used in mild daily exfoliants or balancing toners. Lactic acid helps gently exfoliate while amino acids and NMF components maintain osmotic balance.

Research on lactic acid and theanine

Behind this pairing advice

Lovi checks every pairing with brand-independent rules our dermatologists and cosmetic chemists build and review, and personalizes every pick with AI trained on the real results of millions of users. Lovi trains its fit score models on a proprietary dataset built from more than 10,000 expert-labeled products and more than 100,000 simulated examples, following an internally consistent methodology presented at Cosmoprof, AMWC, and Skin of Color Update.

  • Nadia Kapleva, MS

    Nadia Kapleva, MS

    Co-founder, Medical Director

    Cosmetic chemist, cosmetologist, aesthetic products developer

  • Alexey Shagraev, PhD

    Alexey Shagraev, PhD

    Co-founder, CEO and CTO

    PhD in computer science, 3x US patent holder, ex-Google, ex-Yandex

  • Dr. Sofía Perea Pérez, MD, MSc

    Dr. Sofía Perea Pérez, MD, MSc

    Medical Board

    Aesthetic medicine practitioner, MSc in Longevity and Anti-Aging Medicine

  • Aishani Shah, MD

    Aishani Shah, MD

    Medical Board

    Specialist dermatologist, MBBS, MD, IFAAD

  • Asya Zubkova, MS

    Asya Zubkova, MS

    Medical Board

    Cosmetic chemist, SCS, IFSCC member

  • Hanna Kurets, MD

    Hanna Kurets, MD

    Medical Board, Medical Advisor

    Dermatology MD

  • Elina Nazarenko, MD

    Elina Nazarenko, MD

    Medical Board

    Dermatology and diagnostic consultant

  • Victoria Derkova, MS

    Victoria Derkova, MS

    Medical Board

    Cosmetic chemist, cosmetic development technologist

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