Hyaluronic Acid

A humectant that holds water in the skin's surface layers, so skin looks plumper and feels more comfortable through the day.

On a label you may see
HA, Sodium hyaluronate, Hyaluronate and Hyaluronan

Last reviewed August 4, 2026 · 33 sources, 12 of them regulators or official bodies · how we check this

Best time
Morning or evening
How often
Daily
Strength
Gentle
Sun sensitivity
None

Where to apply

All over the face

Never in your eyes or on your lips.

What does Hyaluronic Acid do?#

Hyaluronic acid is a moisture-binding molecule naturally found in your skin. It can hold up to 1,000 times its weight in water, helping your skin stay plump and hydrated throughout the day.

  • Binds up to 1,000 times its weight in water for intense, lasting hydration
  • Helps improve the appearance of fine lines by plumping the skin with moisture
  • Supports a smoother, more supple skin surface over time

How it works

Hyaluronic acid is a sugar-based molecule prized for its exceptional ability to hold moisture. It helps skin look visibly plumper, smoother, and more hydrated. Multi-molecular-weight formulations offer layered benefits: larger molecules help create a comfortable hydrating film on the surface, while smaller molecules contribute to longer-lasting hydration and a more supple feel throughout the day.

How to use Hyaluronic Acid#

  • Morning or evening, or both — hyaluronic acid suits either.
  • Onto skin that is still slightly damp rather than bone dry, so there is more water for it to hold on to.
  • In routine order: a toner goes on straight after cleansing, a serum after that, a cream last.
  • Always follow it with something that seals — a moisturizer, or a balm over the top. On its own in dry air, a humectant can leave skin feeling tighter rather than softer.
  • Every day from the start is fine. It does not need easing in, and it does not need an evening of its own.
  • Across the whole face. Keep it away from your eyes.
  • If it feels sticky or pills under makeup, use less — a few drops covers a face.

Hyaluronic acid is naturally present in your skin and is one of the safest, most universally tolerated skincare ingredients available.

Forms you will see it in

Hyaluronic acid toner

Where it goes
After cleansing, morning or evening
How often
Daily
Strength
Gentle
Sun sensitivity
None

Hyaluronic acid serum

Where it goes
Before moisturizer, morning or evening
How often
Daily
Strength
Gentle
Sun sensitivity
None

Hyaluronic acid cream

Where it goes
As your moisturizer, morning or evening
How often
Daily
Strength
Gentle
Sun sensitivity
None

Using Hyaluronic Acid with other ingredients

Pairs well with Hyaluronic Acid

Niacinamide

Works well together

Hyaluronic acid draws water in while niacinamide supports the look and feel of the moisture barrier that helps keep it there, for comprehensive hydration.

Vitamin C

Works well together

Hyaluronic acid adds hydration alongside your vitamin C step.

Ceramides

Works well together

Hyaluronic acid attracts water while ceramides help skin look and feel more hydrated and comfortable.

Peptides

Works well together

Hyaluronic acid keeps skin well-hydrated, helping maintain the comfortable, supple environment that complements peptide skincare.

Glycerin

Works well together

Together they provide multi-level hydration, with glycerin working at the surface and hyaluronic acid binding water at deeper layers.

Panthenol (B5)

Works well together

Provides layered hydration for a plumped-looking, comfortable feel.

Ectoin

Works well together

Ectoin helps skin stay feeling hydrated while hyaluronic acid adds extra moisture, for a comfortable, well-hydrated feel.

Ferments / Probiotics

Works well together

Ferments help condition the skin surface while hyaluronic acid adds moisture, for a smooth, well-hydrated feel.

Centella asiatica

Works well together

Cica helps skin look calm and comfortable while hyaluronic acid adds a hydrated, plumped-looking feel.

Green Tea Extract

Works well together

HA hydrates while green tea provides antioxidant support.

Bakuchiol

Works well together

Hyaluronic acid adds hydration to complement bakuchiol's smoothing benefits.

Copper Peptides

Works well together

Hyaluronic acid provides hydration that complements the smoothing support of copper peptides.

Mandelic Acid (AHA)

Works well together

Hyaluronic acid adds hydration alongside your exfoliating step.

LHA

Works well together

Hyaluronic acid adds hydration alongside your exfoliating cleanse.

Glycolic Acid (AHA)

Works well together

Hyaluronic acid adds hydration alongside your exfoliating step.

Lactic Acid (AHA)

Works well together

Both support hydration from different angles, complementing lactic acid's dual exfoliant-humectant nature.

Salicylic Acid (BHA)

Works well together

Hyaluronic acid adds hydration alongside your exfoliating cleanse.

PHA (Polyhydroxy Acid)

Works well together

Together they help skin feel hydrated from multiple angles.

What not to use with Hyaluronic Acid

Nothing flagged. None of the ingredients this wiki covers needs to be kept apart from Hyaluronic Acid — check the label of anything not covered here.

Who should avoid Hyaluronic Acid?#

Six situations change whether Hyaluronic Acid suits your skin right now. Each one is either a reason to skip it, a reason to go slowly, or nothing to watch for.

Maternity & Nursing
No caution
Fragile or Sensitive
No caution
Recent Facial or Laser
No caution
Prone to Redness
No caution
Dry or Itchy Patches
No caution
Recent Shave or Wax
No caution

Cosmetic strength limits for Hyaluronic Acid where you live#

RegionMaximum strength
United StatesNo explicit cap
CanadaNo explicit cap
European UnionNo explicit cap
Great BritainNo explicit cap

No cosmetic regulator in these four markets sets a maximum strength for hyaluronic acid. That is a limit on the rules, not a signal to use more: how much goes into a product is the formulator's decision.

Products with Hyaluronic Acid#

We may earn a small commission when you buy through these links.

Hyaluronic acid toner · 15

COSRX Hyaluronic Acid Hydra Power Essence - 100mlCOSRXHyaluronic Acid Hydra Power Essence - 100ml$20.00Isntree Hyaluronic Acid Toner Plus - 200mlIsntreeHyaluronic Acid Toner Plus - 200ml$17.76Isntree Ultra-Low Molecular Hyaluronic Acid Toner - 300mlIsntreeUltra-Low Molecular Hyaluronic Acid Toner - 300ml$18.64Isntree Hyaluronic Acid Water Essence - 50mlIsntreeHyaluronic Acid Water Essence - 50ml$23.12LANEIGE Water Bank Blue Hyaluronic Essence Toner For Normal To Dry Skin - 160mlLANEIGEWater Bank Blue Hyaluronic Essence Toner For Normal To Dry Skin - 160ml$25.09mixsoon Hyaluronic Acid Toner Pad - 180ml/80padsmixsoonHyaluronic Acid Toner Pad - 180ml/80pads$19.50Rohto Mentholatum Hada Labo Gokujyun Hyaluronic Acid Lotion - Moist - 170mlRohto MentholatumHada Labo Gokujyun Hyaluronic Acid Lotion - Moist - 170ml$8.49Torriden DIVE-IN Low Molecule Hyaluronic Acid Toner - 300mlTorridenDIVE-IN Low Molecule Hyaluronic Acid Toner - 300ml$20.70

Common questions about Hyaluronic Acid#

When should you apply Hyaluronic Acid?

Morning or evening, or both — hyaluronic acid suits either.

Which form of Hyaluronic Acid should you use?

Hyaluronic acid toner — after cleansing, morning or evening, daily. Hyaluronic acid serum — before moisturizer, morning or evening, daily. Hyaluronic acid cream — as your moisturizer, morning or evening, daily.

How often can you use Hyaluronic Acid?

Daily.

Where do you apply Hyaluronic Acid?

All over the face. Keep it away from your eyes and lips.

Does Hyaluronic Acid make skin more sensitive to the sun?

No. Hyaluronic Acid is not flagged as increasing sun sensitivity.

What should you not use with Hyaluronic Acid?

Nothing flagged. None of the ingredients this wiki covers needs to be kept apart from Hyaluronic Acid — check the label of anything not covered here.

Is there a cosmetic limit for Hyaluronic Acid?

No. No cosmetic regulator in the United States, Canada, the European Union or Great Britain sets a maximum strength for it. That is a limit on the rules, not a signal to use more.

Related ingredients#

NiacinamideRetinolGlycerinCeramides

How we check this#

Everything on this page traces to the sources listed below — regulators' own publications and published studies. Where the evidence does not answer a question, it is left unanswered.

Some sources below are the official product information for prescription medicines — some contain this ingredient at higher strengths, others are cited for how they interact with it. We use them for their safety and handling detail only. A cosmetic product is not one of those medicines and is not intended to treat any condition.

Our review is AI-assisted and is not a named expert's opinion. Last reviewed August 4, 2026.

Think something here is out of date or wrong? Email us at wiki@skinintelligence.ai with your reasoning and where you read it. We read what people send, and we update the page when the sources support it.

Regulators and official bodies · 12

  1. S1Cosmetic Ingredient Review Expert Panel. Safety Assessment of Hyaluronates as Used in Cosmetics, Final Report, June 2023 · · vault.
  2. S2Becker LC; Bergfeld WF; Belsito DV; Klaassen CD; Marks JG Jr; Shank RC; Slaga TJ; Snyder PW; Cosmetic Ingredient Review Expert Panel; Andersen FA. Final report of the safety assessment of hyaluronic acid, potassium hyaluronate, and sodium hyaluronate. Int J Toxicol 2009 · PMID 19636067.
  3. S13MotherToBaby. Cosmetics Exposures in Pregnancy and Breastfeeding.
  4. S14Roaccutane 20 mg soft capsules — Summary of Product Characteristics · emc product 100634.
  5. S15Differin Gel — Summary of Product Characteristics · emc product 921.
  6. S16Treclin 1%/0.025% w/w Gel — Summary of Product Characteristics · emc product 5371.
  7. S25Health Canada. Cosmetic Ingredient Hotlist — Prohibited and Restricted Ingredients.
  8. S26Regulation (EC) No 1223/2009 of the European Parliament and of the Council on cosmetic products, consolidated text 02009R1223-20240424, Annexes II–VI.
  9. S27Regulation (EC) No 1223/2009 as retained in UK law, Annex II (substances prohibited in cosmetic products).
  10. S28Regulation (EC) No 1223/2009 as retained in UK law, Annex III (substances subject to restriction).
  11. S29Solaraze 3% Gel — Summary of Product Characteristics (sodium hyaluronate as excipient vehicle for diclofenac) · emc product 6385.
  12. S33MHRA/emc medicines register — searches for `sodium hyaluronate` and both return "No search results", confirming no UK medicinal product has a hyaluronate as its active substance.

Studies and references · 21

  1. S3Draelos ZD; Diaz I; Namkoong J; Wu J; Boyd T. Efficacy Evaluation of a Topical Hyaluronic Acid Serum in Facial Photoaging. Dermatol Ther (Heidelb) 2021 · PMID 34176098 · PMC8322246.
  2. S4Pavicic T; Gauglitz GG; Lersch P; Schwach-Abdellaoui K; Malle B; Korting HC; Farwick M. Efficacy of cream-based novel formulations of hyaluronic acid of different molecular weights in anti-wrinkle treatment. J Drugs Dermatol 2011 · PMID 22052267.
  3. S5Robinson DM; Vega J; Palm MD; Bell M; Widgerow AD; Giannini A. Multicenter evaluation of a topical hyaluronic acid serum. J Cosmet Dermatol 2022 · PMID 35833366.
  4. S6Sundaram H; Cegielska A; Wojciechowska A; Delobel P. Prospective, Randomized, Investigator-Blinded, Split-Face Evaluation of a Topical Crosslinked Hyaluronic Acid Serum for Post-Procedural Improvement of Skin Quality and Biomechanical Attributes. J Drugs Dermatol 2018 · PMID 29601621.
  5. S7Harwood A; Nassereddin A; Krishnamurthy K. Moisturizers. StatPearls / NCBI Bookshelf · NBK545171.
  6. S8Milpied B; Collet E; Genillier N; Vigan M. Allergic contact dermatitis caused by sodium dehydroacetate, not hyaluronic acid, in Ialuset® cream. Contact Dermatitis 2011 · PMID 22077436.
  7. S9Schlesinger TE; Powell CR. Efficacy and tolerability of low molecular weight hyaluronic acid sodium salt 0.2% cream in rosacea. J Drugs Dermatol 2013 · PMID 23839183.
  8. S10Pacha O; Hebert AA. Treating atopic dermatitis: safety, efficacy, and patient acceptability of a ceramide hyaluronic acid emollient foam. Clin Cosmet Investig Dermatol 2012 · PMID 22690129.
  9. S11Zhang JA; Liu J; Wu HJ; Xu Y; Si CC; Zhou BR; Luo D. The effects of Antimicrobial Peptides and Hyaluronic Acid compound mask on wound healing after ablative fractional Carbon Dioxide laser resurfacing. J Cosmet Laser Ther 2019 · PMID 30198801.
  10. S12Ortonne JP; Queille-Roussel C; Duteil L. 3% diclofenac in 2.5% hyaluronic acid (Solaraze) does not induce photosensitivity or phototoxicity alone or in combination with sunscreens. Eur J Dermatol 2006 · PMID 16935795.
  11. S17Gupta RC; Lall R; Srivastava A; Sinha A. Hyaluronic Acid: Molecular Mechanisms and Therapeutic Trajectory. Front Vet Sci 2019 · PMID 31294035 · PMC6603175.
  12. S18A Double-Blinded, Split-Face Clinical Trial Evaluating the Effects of a Vitamin C, E, and Ferulic Acid Serum Combined with Microneedling on Facial Photoaging (authors not confirmed against a record — cited without names) · PMC12912124.
  13. S19Nguyen C; Kuceki G; Birdsall M; Sahni DR; Sahni VN; Hull CM. Rosacea: Practical Guidance and Challenges for Clinical Management. Clin Cosmet Investig Dermatol 2024 · PMID 38283794 · PMC10821660.
  14. S20Bogdanowicz P; Bensadoun P; Noizet M; Béganton B; Philippe A; Alvarez-Georges S; Doat G; Tourette A; Bessou-Touya S; Lemaitre JM; Duplan H. Senomorphic activity of a combination of niacinamide and hyaluronic acid: correlation with clinical improvement of skin aging. Sci Rep 2024 · PMID 39009698.
  15. S21Milani M; Sparavigna A. The 24-hour skin hydration and barrier function effects of a hyaluronic 1%, glycerin 5%, and Centella asiatica stem cells extract moisturizing fluid: an intra-subject, randomized, assessor-blinded study. Clin Cosmet Investig Dermatol 2017 · PMID 28860834 · PMC5560567.
  16. S22Skin Antiaging and Skin Health Benefits of Probiotic Intake Combined with Topical Ectoin and Sodium Hyaluronate: A Randomized, Double-Blind, Placebo-Controlled Trial. Cosmetics 2025;12(2):34 (not PubMed-indexed; authors not confirmed against a record — cited without names).
  17. S23Li WH; Wong HK; Serrano J; Randhawa M; Kaur S; Southall MD; Parsa R. Topical stabilized retinol treatment induces the expression of HAS genes and HA production in human skin in vitro and in vivo. Arch Dermatol Res 2017 · PMID 28247017.
  18. S24Papakonstantinou E; Roth M; Karakiulakis G. Hyaluronic acid: A key molecule in skin aging. Dermatoendocrinol 2012 · PMID 23467280 · PMC3583886.
  19. S30Zanchetta C; Scandolera A; Reynaud R. Hyaluronic Acid in Topical Applications: The Various Forms and Biological Effects of a Hero Molecule in the Cosmetics Industry. Biomolecules 2025;15(12):1656 · PMID 41463312.
  20. S31Hu L; Nomura S; Sato Y; Takagi K; Ishii T; Honma Y; Watanabe K; Mizukami Y; Muto J. Anti-inflammatory effects of differential molecular weight Hyaluronic acids on UVB-induced calprotectin-mediated keratinocyte inflammation. J Dermatol Sci 2022 · PMID 35717315.
  21. S32Gariboldi S; Palazzo M; Zanobbio L; Selleri S; Sommariva M; Sfondrini L; Cavicchini S; Balsari A; Rumio C. Low molecular weight hyaluronic acid increases the self-defense of skin epithelium by induction of beta-defensin 2 via TLR2 and TLR4. J Immunol 2008 · PMID 18641349.

Cosmetic guidance only. Skin Intelligence is a cosmetic skincare tool, not a medical device, and does not diagnose, treat, cure, or prevent any condition. Always follow the directions on the product you are using — where they differ from anything on this page, the label takes precedence. If you have a skin concern, please see a healthcare professional.

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