# Carnosine and lactic acid

Page: https://lovi.care/skincare/ingredients/carnosine-and-lactic-acid

The Lovi Fit is the same in every country; only the stores and prices differ, and the ones here are for the United States.

Keep them apart

Use them on alternate nights, with [lactic acid](https://lovi.care/skincare/ingredients/lactic-acid) first and [carnosine](https://lovi.care/skincare/ingredients/carnosine) second, because acid ruins the firming protein. Lactic acid destroys the peptide's ability to firm and smooth your skin. You can switch to a gentler acid or use them on different days.

- [All about carnosine](https://lovi.care/skincare/ingredients/carnosine)
- [All about lactic acid](https://lovi.care/skincare/ingredients/lactic-acid)

### [Carnosine](https://lovi.care/skincare/ingredients/carnosine) products

- [Vanicream Daily Facial Moisturizer](https://lovi.care/skincare/p/vanicream/daily-facial-moisturizer/for/dry-skin) — Superior fit — [$13.97 at Amazon](https://www.amazon.com/dp/B08BW46XXK?tag=lovi-care-web-product-20&linkCode=osi&th=1&psc=1)
- [Vanicream Vitamin C Serum](https://lovi.care/skincare/p/vanicream/vitamin-c-serum/for/mature-skin) — High fit — [$17.99 at Amazon](https://www.amazon.com/dp/B0BJ4GZTK1?tag=lovi-care-web-product-20&linkCode=osi&th=1&psc=1)
- [Olay Regenerating Cream Cleanser](https://lovi.care/skincare/p/olay/regenerating-cream-cleanser/for/acne-prone-skin) — High fit — [$20.20 at Amazon](https://www.amazon.com/dp/B0H6R8FMQQ?tag=lovi-care-web-product-20&linkCode=osi&th=1&psc=1)
- [Skin Better Science Alto Advanced Defense and Repair Serum](https://lovi.care/skincare/p/skin-better-science/alto-advanced-defense-and-repair-serum/for/dry-skin) — High fit
- [Olay Regenerist Detoxifying Pore Scrub](https://lovi.care/skincare/p/olay-regenerist/detoxifying-pore-scrub/for/oily-acne-prone-skin) — Average fit — [$20.55 at Amazon](https://www.amazon.com/dp/B0H6R4BTWF?tag=lovi-care-web-product-20&linkCode=osi&th=1&psc=1)
- [Meaningful Beauty Youth Activating Melon Serum](https://lovi.care/skincare/p/meaningful-beauty/youth-activating-melon-serum/for/mature-skin) — Average fit
- [Paula's Choice Advanced Replenishing Toner](https://lovi.care/skincare/p/paula-s-choice/advanced-replenishing-toner/for/dry-skin) — Superior fit — [$29.00 at Amazon](https://www.amazon.com/dp/B00CJWACX2?tag=lovi-care-web-product-20&linkCode=osi&th=1&psc=1)
- [Shiseido Benefiance NutriPerfect Night Cream](https://lovi.care/skincare/p/shiseido/benefiance-nutriperfect-night-cream/for/dry-skin) — Warning fit

### [Lactic acid](https://lovi.care/skincare/ingredients/lactic-acid) products

- [Medicube Zero Pore Pad](https://lovi.care/skincare/p/medicube/zero-pore-pad/for/oily-skin) — Superior fit — [$18.90 at Amazon](https://www.amazon.com/dp/B09V7Z4TJG?tag=lovi-care-web-product-20&linkCode=osi&th=1&psc=1)
- [First Aid Beauty KP Bump Eraser Body Scrub](https://lovi.care/skincare/p/first-aid-beauty/kp-bump-eraser-body-scrub/for/dark-spots) — Average fit — [$36.00 at Amazon](https://www.amazon.com/dp/B0GSX3TH63?tag=lovi-care-web-product-20&linkCode=osi&th=1&psc=1)
- [EltaMD UV Clear Broad-Spectrum SPF 46](https://lovi.care/skincare/p/eltamd/uv-clear-broad-spectrum-spf-46/for/oily-acne-prone-skin) — Superior fit — [$46.00 at Amazon](https://www.amazon.com/dp/B002MSN3QQ?tag=lovi-care-web-product-20&linkCode=osi&th=1&psc=1)
- [First Aid Beauty Facial Radiance Pads](https://lovi.care/skincare/p/first-aid-beauty/facial-radiance-pads/for/sensitive-skin) — Superior fit — [$39.00 at Amazon](https://www.amazon.com/dp/B0G8TPX5DR?tag=lovi-care-web-product-20&linkCode=osi&th=1&psc=1)
- [CeraVe SA Lotion for Rough & Bumpy Skin](https://lovi.care/skincare/p/cerave/sa-lotion-for-rough-and-bumpy-skin/for/oily-skin) — Average fit — [$47.19 at Amazon](https://www.amazon.com/dp/B0GHC9HJJB?tag=lovi-care-web-product-20&linkCode=osi&th=1&psc=1)
- [CeraVe Renewing SA Cream](https://lovi.care/skincare/p/cerave/renewing-sa-cream/for/oily-acne-prone-skin) — High fit
- [The Ordinary Alpha Arbutin 2% + HA](https://lovi.care/skincare/p/the-ordinary/alpha-arbutin-2-ha/for/dark-spots) — Superior fit — [$11.50 at Amazon](https://www.amazon.com/dp/B06XCZFCFZ?tag=lovi-care-web-product-20&linkCode=osi&th=1&psc=1)
- [The Ordinary Retinal 0.2% Emulsion](https://lovi.care/skincare/p/the-ordinary/retinal-0-2-emulsion/for/oily-acne-prone-skin) — High fit — [$14.90 at Amazon](https://www.amazon.com/dp/B0CZ5VG3L1?tag=lovi-care-web-product-20&linkCode=osi&th=1&psc=1)
- [Kate Somerville ExfoliKate Intensive Exfoliating Treatment](https://lovi.care/skincare/p/kate-somerville/exfolikate-intensive-exfoliating-treatment/for/mature-skin) — Superior fit — [$85.00 at Amazon](https://www.amazon.com/dp/B002M3NV2C?tag=lovi-care-web-product-20&linkCode=osi&th=1&psc=1)
- [Dr. Dennis Gross Alpha Beta Universal Daily Peel](https://lovi.care/skincare/p/dr-dennis-gross/alpha-beta-universal-daily-peel/for/acne-prone-skin) — Superior fit — [$22.00 at Amazon](https://www.amazon.com/dp/B074JCCQC6?tag=lovi-care-web-product-20&linkCode=osi&th=1&psc=1)
- [The Ordinary Lactic Acid 5% + HA](https://lovi.care/skincare/p/the-ordinary/lactic-acid-5-ha/for/dry-skin) — Superior fit — [$8.10 at Amazon](https://www.amazon.com/dp/B01NA0F3FB?tag=lovi-care-web-product-20&linkCode=osi&th=1&psc=1)
- [Good Molecules Overnight Exfoliating Treatment](https://lovi.care/skincare/p/good-molecules/overnight-exfoliating-treatment/for/oily-skin) — Superior fit — [$5.99 at Amazon](https://www.amazon.com/dp/B08TMDRF1L?tag=lovi-care-web-product-20&linkCode=osi&th=1&psc=1)

## Questions and answers

### Can you use carnosine and lactic acid together?

No, you should keep [carnosine](https://lovi.care/skincare/ingredients/carnosine) and [lactic acid](https://lovi.care/skincare/ingredients/lactic-acid) apart in your routine because the acidic environment of lactic acid may destabilize carnosine and reduce its effectiveness.

### Which goes first, carnosine or lactic acid?

Keep carnosine and lactic acid apart because the low pH of lactic acid destabilizes peptides like carnosine and reduces their bioactivity. Use them in separate routines to avoid irritation and protect your skin barrier.

### Are carnosine and lactic acid good for sensitive skin?

Keep carnosine and lactic acid apart in your routine because the acidic environment of lactic acid may destabilize carnosine and reduce its effectiveness. Lovi rates this combination as low compatibility for sensitive skin.

## Research on carnosine and lactic acid

- [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
- [Night Cream Containing Melatonin, Carnosine and Helichrysum italicum Extract Helps Reduce Skin Reactivity and Signs of Photodamage: Ex Vivo and Clinical Studies](https://pubmed.ncbi.nlm.nih.gov/32915393/) Carnosine · Dermatology and Therapy, 2020
- [Neuroimmunomodulatory compound for sensitive skin care: in vitro and clinical assessment](https://pubmed.ncbi.nlm.nih.gov/18482014/) Carnosine · Journal of Cosmetic Dermatology, 2008
- [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

## Other combinations

- Keep them apart: [Benzoyl peroxide and lactic acid](https://lovi.care/skincare/ingredients/benzoyl-peroxide-and-lactic-acid)
- Keep them apart: [Retinol and lactic acid](https://lovi.care/skincare/ingredients/retinol-and-lactic-acid)
- Depends on the strength: [Niacinamide and lactic acid](https://lovi.care/skincare/ingredients/niacinamide-and-lactic-acid)
- Work well together: [Lactic acid and sodium lactate](https://lovi.care/skincare/ingredients/lactic-acid-and-sodium-lactate)
- Work well together: [Lactic acid and tromethamine](https://lovi.care/skincare/ingredients/lactic-acid-and-tromethamine)
- Work well together: [Lactic acid and betaine](https://lovi.care/skincare/ingredients/lactic-acid-and-betaine)
- Work well together: [Glycerin and lactic acid](https://lovi.care/skincare/ingredients/glycerin-and-lactic-acid)
- Depends on the strength: [Lactic acid and hyaluronic acid](https://lovi.care/skincare/ingredients/lactic-acid-and-hyaluronic-acid)
- Keep them apart: [AHA blend glycolic and citric acids and carnosine](https://lovi.care/skincare/ingredients/aha-blend-glycolic-and-citric-acids-and-carnosine)
- Keep them apart: [Carnosine and citric acid](https://lovi.care/skincare/ingredients/carnosine-and-citric-acid)
- Keep them apart: [Glycolic acid and carnosine](https://lovi.care/skincare/ingredients/glycolic-acid-and-carnosine)
- Keep them apart: [Lactic acid and acetyl hexapeptide-3](https://lovi.care/skincare/ingredients/lactic-acid-and-acetyl-hexapeptide-3)
- Keep them apart: [Bio-placenta peptides and lactic acid](https://lovi.care/skincare/ingredients/bio-placenta-peptides-and-lactic-acid)
- Keep them apart: [Lactic acid and collagen peptide](https://lovi.care/skincare/ingredients/lactic-acid-and-collagen-peptide)
- Keep them apart: [Lactic acid and copper peptide](https://lovi.care/skincare/ingredients/lactic-acid-and-copper-peptide)
- Keep them apart: [Hexapeptide and lactic acid](https://lovi.care/skincare/ingredients/hexapeptide-and-lactic-acid)
- Keep them apart: [Lactic acid and hexapeptide-9](https://lovi.care/skincare/ingredients/lactic-acid-and-hexapeptide-9)
- Keep them apart: [Lactic acid and palmitoyl pentapeptide-4](https://lovi.care/skincare/ingredients/lactic-acid-and-palmitoyl-pentapeptide-4)
- Keep them apart: [Lactic acid and palmitoyl tripeptide-1](https://lovi.care/skincare/ingredients/lactic-acid-and-palmitoyl-tripeptide-1)
- Keep them apart: [Lactic acid and peptide-rich plasma](https://lovi.care/skincare/ingredients/lactic-acid-and-peptide-rich-plasma)
- Keep them apart: [Lactic acid and triple peptide blend](https://lovi.care/skincare/ingredients/lactic-acid-and-triple-peptide-blend)
- Keep them apart: [Carnosine and mandelic acid](https://lovi.care/skincare/ingredients/carnosine-and-mandelic-acid)
- Keep them apart: [Adapalene and lactic acid](https://lovi.care/skincare/ingredients/adapalene-and-lactic-acid)
- Keep them apart: [Lactic acid and granactive retinoid](https://lovi.care/skincare/ingredients/lactic-acid-and-granactive-retinoid)
- Keep them apart: [Lactic acid and hydroxypinacolone retinoate](https://lovi.care/skincare/ingredients/lactic-acid-and-hydroxypinacolone-retinoate)
- Keep them apart: [Pro-retinol and lactic acid](https://lovi.care/skincare/ingredients/pro-retinol-and-lactic-acid)
- Keep them apart: [Retinal and lactic acid](https://lovi.care/skincare/ingredients/retinal-and-lactic-acid)
- Keep them apart: [Lactic acid and retinoid blend](https://lovi.care/skincare/ingredients/lactic-acid-and-retinoid-blend)
- Keep them apart: [Tretinoin and lactic acid](https://lovi.care/skincare/ingredients/tretinoin-and-lactic-acid)
- Work well together: [Lactic acid and gluconolactone](https://lovi.care/skincare/ingredients/lactic-acid-and-gluconolactone)
- Work well together: [Lactic acid and lactobionic acid](https://lovi.care/skincare/ingredients/lactic-acid-and-lactobionic-acid)
- Work well together: [Lactic acid and cholesterol](https://lovi.care/skincare/ingredients/lactic-acid-and-cholesterol)
- Work well together: [Lactic acid and lauric acid](https://lovi.care/skincare/ingredients/lactic-acid-and-lauric-acid)
- Work well together: [Linoleic acid and lactic acid](https://lovi.care/skincare/ingredients/linoleic-acid-and-lactic-acid)
- Keep them apart: [Lactic acid and tri-ceramide complex](https://lovi.care/skincare/ingredients/lactic-acid-and-tri-ceramide-complex)
- Work well together: [Arginine and lactic acid](https://lovi.care/skincare/ingredients/arginine-and-lactic-acid)
- Work well together: [Lactic acid and GABA](https://lovi.care/skincare/ingredients/lactic-acid-and-gaba)
- Work well together: [Silk amino acids and lactic acid](https://lovi.care/skincare/ingredients/silk-amino-acids-and-lactic-acid)
- Work well together: [Lactic acid and taurine](https://lovi.care/skincare/ingredients/lactic-acid-and-taurine)
- Work well together: [Lactic acid and theanine](https://lovi.care/skincare/ingredients/lactic-acid-and-theanine)
- Work well together: [Ferulic acid and lactic acid](https://lovi.care/skincare/ingredients/ferulic-acid-and-lactic-acid)
- Work well together: [Vitamin E and lactic acid](https://lovi.care/skincare/ingredients/vitamin-e-and-lactic-acid)
- Keep them apart: [Azelaic acid and lactic acid](https://lovi.care/skincare/ingredients/azelaic-acid-and-lactic-acid)
- Keep them apart: [Salicylic acid and lactic acid](https://lovi.care/skincare/ingredients/salicylic-acid-and-lactic-acid)
- Work well together: [Allantoin and lactic acid](https://lovi.care/skincare/ingredients/allantoin-and-lactic-acid)
- Work well together: [Lactic acid and bisabolol](https://lovi.care/skincare/ingredients/lactic-acid-and-bisabolol)
- Work well together: [Panthenol and lactic acid](https://lovi.care/skincare/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/carnosine-and-lactic-acid (this page)
- United Kingdom: https://lovi.care/skincare/uk/ingredients/carnosine-and-lactic-acid
- Ireland: https://lovi.care/skincare/ie/ingredients/carnosine-and-lactic-acid
- Germany: https://lovi.care/skincare/de/ingredients/carnosine-and-lactic-acid
- France: https://lovi.care/skincare/fr/ingredients/carnosine-and-lactic-acid
- Italy: https://lovi.care/skincare/it/ingredients/carnosine-and-lactic-acid
- Netherlands: https://lovi.care/skincare/nl/ingredients/carnosine-and-lactic-acid
- Spain: https://lovi.care/skincare/es/ingredients/carnosine-and-lactic-acid
- Canada: https://lovi.care/skincare/ca/ingredients/carnosine-and-lactic-acid
- Australia: https://lovi.care/skincare/au/ingredients/carnosine-and-lactic-acid
- Singapore: https://lovi.care/skincare/sg/ingredients/carnosine-and-lactic-acid
- Saudi Arabia: https://lovi.care/skincare/sa/ingredients/carnosine-and-lactic-acid
- United Arab Emirates: https://lovi.care/skincare/ae/ingredients/carnosine-and-lactic-acid