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Hexapeptide-9 and theanine

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

Hexapeptide-9 and theanine: work well together

Work well together

Use hexapeptide-9 and theanine together, applying them both in your morning hydrating routine to support skin firmness and moisture balance. Theanine helps nourish the skin while hexapeptide-9 supports its firmness, making them work well together. If your skin feels sensitive, you can apply them at different times of the day or use a gentler product strength.

Hexapeptide-9 products

Theanine products

Questions and answers

Can you use hexapeptide-9 and theanine together?

Yes, hexapeptide-9 and theanine work well together to support structural protein synthesis and moisture balance for all skin types. Lovi rates this combination as Superior. You can use them in hydrating and reparative complexes.

Journal of Clinical Medicine, 2022Journal of Cosmetic Dermatology, 2025

Which goes first, hexapeptide-9 or theanine?

Hexapeptide-9 and theanine work well together to support structural protein synthesis and moisture balance for all skin types. You may use them together in hydrating and reparative complexes.

Journal of Clinical Medicine, 2022Journal of Cosmetic Dermatology, 2025

Are hexapeptide-9 and theanine good for sensitive skin?

Hexapeptide-9 and theanine work well together to support structural protein synthesis, moisture balance, and sensitive skin care. Lovi rates the fit as Superior.

Journal of Clinical Medicine, 2022Journal of Cosmetic Dermatology, 2025

Research on hexapeptide-9 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

How does it fit your skin?

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