# Lactic acid and theanine Page: https://lovi.care/skincare/nl/ingredients/lactic-acid-and-theanine The Lovi Fit is the same in every country; only the stores and prices differ, and the ones here are for the Netherlands. 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](https://lovi.care/skincare/nl/ingredients/lactic-acid) clears away dead skin while [theanine](https://lovi.care/skincare/nl/ingredients/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. - [All about lactic acid](https://lovi.care/skincare/nl/ingredients/lactic-acid) - [All about theanine](https://lovi.care/skincare/nl/ingredients/theanine) ### [Lactic acid](https://lovi.care/skincare/nl/ingredients/lactic-acid) products - [Medicube Zero Pore Pad](https://lovi.care/skincare/nl/p/medicube/zero-pore-pad/for/oily-skin) — Superior fit — [€16.99 at Amazon](https://www.amazon.nl/dp/B09V7Z4TJG?tag=lovi-care-web-product085-21&linkCode=osi&th=1&psc=1) - [First Aid Beauty KP Bump Eraser Body Scrub](https://lovi.care/skincare/nl/p/first-aid-beauty/kp-bump-eraser-body-scrub/for/dark-spots) — Average fit — [€26.45 at Amazon](https://www.amazon.nl/dp/B08GNS58PQ?tag=lovi-care-web-product085-21&linkCode=osi&th=1&psc=1) - [EltaMD UV Clear Broad-Spectrum SPF 46](https://lovi.care/skincare/nl/p/eltamd/uv-clear-broad-spectrum-spf-46/for/oily-acne-prone-skin) — Superior fit — [€77.06 at Amazon](https://www.amazon.nl/dp/B00ZPWR0N8?tag=lovi-care-web-product085-21&linkCode=osi&th=1&psc=1) - [First Aid Beauty Facial Radiance Pads](https://lovi.care/skincare/nl/p/first-aid-beauty/facial-radiance-pads/for/sensitive-skin) — Superior fit — [€124.67 at Amazon](https://www.amazon.nl/dp/B0G8TPX5DR?tag=lovi-care-web-product085-21&linkCode=osi&th=1&psc=1) - [CeraVe SA Lotion for Rough & Bumpy Skin](https://lovi.care/skincare/nl/p/cerave/sa-lotion-for-rough-and-bumpy-skin/for/oily-skin) — Average fit — [€19.96 at Amazon](https://www.amazon.nl/dp/B07W8H8MBX?tag=lovi-care-web-product085-21&linkCode=osi&th=1&psc=1) - [CeraVe Renewing SA Cream](https://lovi.care/skincare/nl/p/cerave/renewing-sa-cream/for/oily-acne-prone-skin) — High fit - [The Ordinary Alpha Arbutin 2% + HA](https://lovi.care/skincare/nl/p/the-ordinary/alpha-arbutin-2-ha/for/dark-spots) — Superior fit — [€12.70 at Amazon](https://www.amazon.nl/dp/B06XCZFCFZ?tag=lovi-care-web-product085-21&linkCode=osi&th=1&psc=1) - [The Ordinary Retinal 0.2% Emulsion](https://lovi.care/skincare/nl/p/the-ordinary/retinal-0-2-emulsion/for/oily-acne-prone-skin) — High fit — [€16.66 at Amazon](https://www.amazon.nl/dp/B0CZ5VG3L1?tag=lovi-care-web-product085-21&linkCode=osi&th=1&psc=1) - [Kate Somerville ExfoliKate Intensive Exfoliating Treatment](https://lovi.care/skincare/nl/p/kate-somerville/exfolikate-intensive-exfoliating-treatment/for/mature-skin) — Superior fit — [€23.18 at Amazon](https://www.amazon.nl/dp/B076CFBMQZ?tag=lovi-care-web-product085-21&linkCode=osi&th=1&psc=1) - [Dr. Dennis Gross Alpha Beta Universal Daily Peel](https://lovi.care/skincare/nl/p/dr-dennis-gross/alpha-beta-universal-daily-peel/for/acne-prone-skin) — Superior fit — [€199.00 at Amazon](https://www.amazon.nl/dp/B009QZ595Q?tag=lovi-care-web-product085-21&linkCode=osi&th=1&psc=1) - [The Ordinary Lactic Acid 5% + HA](https://lovi.care/skincare/nl/p/the-ordinary/lactic-acid-5-ha/for/dry-skin) — Superior fit - [Good Molecules Overnight Exfoliating Treatment](https://lovi.care/skincare/nl/p/good-molecules/overnight-exfoliating-treatment/for/oily-skin) — Superior fit — [€22.99 at Amazon](https://www.amazon.nl/dp/B08TMDRF1L?tag=lovi-care-web-product085-21&linkCode=osi&th=1&psc=1) ### [Theanine](https://lovi.care/skincare/nl/ingredients/theanine) products - [Shiseido Treatment Softener](https://lovi.care/skincare/nl/p/shiseido/treatment-softener/for/oily-skin) — High fit - [Clé de Peau Beauté Hydro-Clarifying Lotion](https://lovi.care/skincare/nl/p/cle-de-peau-beaute/hydro-clarifying-lotion/for/sensitive-skin) — Superior fit — [€104.59 at Amazon](https://www.amazon.nl/dp/B07WFWRMNS?tag=lovi-care-web-product085-21&linkCode=osi&th=1&psc=1) ## Questions and answers ### Can you use lactic acid and theanine together? [Lactic acid](https://lovi.care/skincare/nl/ingredients/lactic-acid) and [theanine](https://lovi.care/skincare/nl/ingredients/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 - [Lactate triggers KAT8-mediated LTBP1 lactylation at lysine 752 to promote skin rejuvenation by inducing collagen synthesis in fibroblasts](https://pubmed.ncbi.nlm.nih.gov/39102921/) Lactic acid · International Journal of Biological Macromolecules, 2024 - [Poly-L-Lactic acid increases collagen gene expression and synthesis in cultured dermal fibroblast (Hs68) through the TGF-β/Smad pathway](https://pubmed.ncbi.nlm.nih.gov/36575891/) Lactic acid · Journal of Cosmetic Dermatology, 2023 - [Do urea/ammonium lactate combinations achieve better skin protection and hydration than either component alone?](https://pubmed.ncbi.nlm.nih.gov/11803256/) Lactic acid · Skin Pharmacology and Applied Skin Physiology, 2002 - [Combining Topical and Oral Botanicals for Skin Redness, Pigmentation, Sleep, and Mood: A Randomized Controlled Study](https://pubmed.ncbi.nlm.nih.gov/36431167/) Theanine · Journal of Clinical Medicine, 2022 ## Other combinations - Keep them apart: [Benzoyl peroxide and lactic acid](https://lovi.care/skincare/nl/ingredients/benzoyl-peroxide-and-lactic-acid) - Keep them apart: [Retinol and lactic acid](https://lovi.care/skincare/nl/ingredients/retinol-and-lactic-acid) - Depends on the strength: [Niacinamide and lactic acid](https://lovi.care/skincare/nl/ingredients/niacinamide-and-lactic-acid) - Work well together: [Lactic acid and sodium lactate](https://lovi.care/skincare/nl/ingredients/lactic-acid-and-sodium-lactate) - Work well together: [Lactic acid and tromethamine](https://lovi.care/skincare/nl/ingredients/lactic-acid-and-tromethamine) - Work well together: [Lactic acid and betaine](https://lovi.care/skincare/nl/ingredients/lactic-acid-and-betaine) - Work well together: [Glycerin and lactic acid](https://lovi.care/skincare/nl/ingredients/glycerin-and-lactic-acid) - Depends on the strength: [Lactic acid and hyaluronic acid](https://lovi.care/skincare/nl/ingredients/lactic-acid-and-hyaluronic-acid) - Work well together: [Acetyl hexapeptide-3 and theanine](https://lovi.care/skincare/nl/ingredients/acetyl-hexapeptide-3-and-theanine) - Work well together: [Bio-placenta peptides and theanine](https://lovi.care/skincare/nl/ingredients/bio-placenta-peptides-and-theanine) - Work well together: [Collagen peptide and theanine](https://lovi.care/skincare/nl/ingredients/collagen-peptide-and-theanine) - Work well together: [Copper peptide and theanine](https://lovi.care/skincare/nl/ingredients/copper-peptide-and-theanine) - Work well together: [Hexapeptide and theanine](https://lovi.care/skincare/nl/ingredients/hexapeptide-and-theanine) - Work well together: [Hexapeptide-9 and theanine](https://lovi.care/skincare/nl/ingredients/hexapeptide-9-and-theanine) - Work well together: [Palmitoyl pentapeptide-4 and theanine](https://lovi.care/skincare/nl/ingredients/palmitoyl-pentapeptide-4-and-theanine) - Work well together: [Palmitoyl tripeptide-1 and theanine](https://lovi.care/skincare/nl/ingredients/palmitoyl-tripeptide-1-and-theanine) - Work well together: [Peptide-rich plasma and theanine](https://lovi.care/skincare/nl/ingredients/peptide-rich-plasma-and-theanine) - Work well together: [Triple peptide blend and theanine](https://lovi.care/skincare/nl/ingredients/triple-peptide-blend-and-theanine) - Keep them apart: [Lactic acid and acetyl hexapeptide-3](https://lovi.care/skincare/nl/ingredients/lactic-acid-and-acetyl-hexapeptide-3) - Keep them apart: [Bio-placenta peptides and lactic acid](https://lovi.care/skincare/nl/ingredients/bio-placenta-peptides-and-lactic-acid) - Keep them apart: [Carnosine and lactic acid](https://lovi.care/skincare/nl/ingredients/carnosine-and-lactic-acid) - Keep them apart: [Lactic acid and collagen peptide](https://lovi.care/skincare/nl/ingredients/lactic-acid-and-collagen-peptide) - Keep them apart: [Lactic acid and copper peptide](https://lovi.care/skincare/nl/ingredients/lactic-acid-and-copper-peptide) - Keep them apart: [Hexapeptide and lactic acid](https://lovi.care/skincare/nl/ingredients/hexapeptide-and-lactic-acid) - Keep them apart: [Lactic acid and hexapeptide-9](https://lovi.care/skincare/nl/ingredients/lactic-acid-and-hexapeptide-9) - Keep them apart: [Lactic acid and palmitoyl pentapeptide-4](https://lovi.care/skincare/nl/ingredients/lactic-acid-and-palmitoyl-pentapeptide-4) - Keep them apart: [Lactic acid and palmitoyl tripeptide-1](https://lovi.care/skincare/nl/ingredients/lactic-acid-and-palmitoyl-tripeptide-1) - Keep them apart: [Lactic acid and peptide-rich plasma](https://lovi.care/skincare/nl/ingredients/lactic-acid-and-peptide-rich-plasma) - Keep them apart: [Lactic acid and triple peptide blend](https://lovi.care/skincare/nl/ingredients/lactic-acid-and-triple-peptide-blend) - Keep them apart: [Adapalene and lactic acid](https://lovi.care/skincare/nl/ingredients/adapalene-and-lactic-acid) - Keep them apart: [Lactic acid and granactive retinoid](https://lovi.care/skincare/nl/ingredients/lactic-acid-and-granactive-retinoid) - Keep them apart: [Lactic acid and hydroxypinacolone retinoate](https://lovi.care/skincare/nl/ingredients/lactic-acid-and-hydroxypinacolone-retinoate) - Keep them apart: [Pro-retinol and lactic acid](https://lovi.care/skincare/nl/ingredients/pro-retinol-and-lactic-acid) - Keep them apart: [Retinal and lactic acid](https://lovi.care/skincare/nl/ingredients/retinal-and-lactic-acid) - Keep them apart: [Lactic acid and retinoid blend](https://lovi.care/skincare/nl/ingredients/lactic-acid-and-retinoid-blend) - Keep them apart: [Tretinoin and lactic acid](https://lovi.care/skincare/nl/ingredients/tretinoin-and-lactic-acid) - Work well together: [Lactic acid and gluconolactone](https://lovi.care/skincare/nl/ingredients/lactic-acid-and-gluconolactone) - Work well together: [Lactic acid and lactobionic acid](https://lovi.care/skincare/nl/ingredients/lactic-acid-and-lactobionic-acid) - Work well together: [Lactic acid and cholesterol](https://lovi.care/skincare/nl/ingredients/lactic-acid-and-cholesterol) - Work well together: [Lactic acid and lauric acid](https://lovi.care/skincare/nl/ingredients/lactic-acid-and-lauric-acid) - Work well together: [Linoleic acid and lactic acid](https://lovi.care/skincare/nl/ingredients/linoleic-acid-and-lactic-acid) - Keep them apart: [Lactic acid and tri-ceramide complex](https://lovi.care/skincare/nl/ingredients/lactic-acid-and-tri-ceramide-complex) - Work well together: [AHA blend glycolic and citric acids and theanine](https://lovi.care/skincare/nl/ingredients/aha-blend-glycolic-and-citric-acids-and-theanine) - Work well together: [Citric acid and theanine](https://lovi.care/skincare/nl/ingredients/citric-acid-and-theanine) - Work well together: [Glycolic acid and theanine](https://lovi.care/skincare/nl/ingredients/glycolic-acid-and-theanine) - Work well together: [Arginine and lactic acid](https://lovi.care/skincare/nl/ingredients/arginine-and-lactic-acid) - Work well together: [Lactic acid and GABA](https://lovi.care/skincare/nl/ingredients/lactic-acid-and-gaba) - Work well together: [Silk amino acids and lactic acid](https://lovi.care/skincare/nl/ingredients/silk-amino-acids-and-lactic-acid) - Work well together: [Lactic acid and taurine](https://lovi.care/skincare/nl/ingredients/lactic-acid-and-taurine) - Work well together: [Mandelic acid and theanine](https://lovi.care/skincare/nl/ingredients/mandelic-acid-and-theanine) - Work well together: [Ferulic acid and lactic acid](https://lovi.care/skincare/nl/ingredients/ferulic-acid-and-lactic-acid) - Work well together: [Vitamin E and lactic acid](https://lovi.care/skincare/nl/ingredients/vitamin-e-and-lactic-acid) - Keep them apart: [Azelaic acid and lactic acid](https://lovi.care/skincare/nl/ingredients/azelaic-acid-and-lactic-acid) - Keep them apart: [Salicylic acid and lactic acid](https://lovi.care/skincare/nl/ingredients/salicylic-acid-and-lactic-acid) - Work well together: [Hyaluronic acid and theanine](https://lovi.care/skincare/nl/ingredients/hyaluronic-acid-and-theanine) - Work well together: [Allantoin and lactic acid](https://lovi.care/skincare/nl/ingredients/allantoin-and-lactic-acid) - Work well together: [Lactic acid and bisabolol](https://lovi.care/skincare/nl/ingredients/lactic-acid-and-bisabolol) - Work well together: [Panthenol and lactic acid](https://lovi.care/skincare/nl/ingredients/panthenol-and-lactic-acid) ## About the Lovi Fit Lovi: Unbiased, science-based skincare AI trained on real user outcomes. Lovi checks every pairing with brand-independent rules its 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. Levels from best to worst: Superior, High, Average, Low, Caution, Warning. Behind this pairing advice: Nadia Kapleva, MS (Co-founder, Medical Director); Alexey Shagraev, PhD (Co-founder, CEO and CTO); Dr. Sofía Perea Pérez, MD, MSc (Medical Board); Aishani Shah, MD (Medical Board); Asya Zubkova, MS (Medical Board); Hanna Kurets, MD (Medical Board, Medical Advisor); Elina Nazarenko, MD (Medical Board); Victoria Derkova, MS (Medical Board). Page built Nov 8, 2026. More from Lovi: https://lovi.care/skincare/llms.txt ## This page in other countries - United States: https://lovi.care/skincare/ingredients/lactic-acid-and-theanine - United Kingdom: https://lovi.care/skincare/uk/ingredients/lactic-acid-and-theanine - Ireland: https://lovi.care/skincare/ie/ingredients/lactic-acid-and-theanine - Germany: https://lovi.care/skincare/de/ingredients/lactic-acid-and-theanine - France: https://lovi.care/skincare/fr/ingredients/lactic-acid-and-theanine - Italy: https://lovi.care/skincare/it/ingredients/lactic-acid-and-theanine - Netherlands: https://lovi.care/skincare/nl/ingredients/lactic-acid-and-theanine (this page) - Spain: https://lovi.care/skincare/es/ingredients/lactic-acid-and-theanine - Canada: https://lovi.care/skincare/ca/ingredients/lactic-acid-and-theanine - Australia: https://lovi.care/skincare/au/ingredients/lactic-acid-and-theanine - Singapore: https://lovi.care/skincare/sg/ingredients/lactic-acid-and-theanine - Saudi Arabia: https://lovi.care/skincare/sa/ingredients/lactic-acid-and-theanine - United Arab Emirates: https://lovi.care/skincare/ae/ingredients/lactic-acid-and-theanine