Ingredient guide · free · every answer cites its source
How to start hyaluronic acid
- 1What it is
- 2Start route
- 3Pairing
A guide to the general plan, not a diagnosis · AAD · Cleveland Clinic · FDA
The schedule comes from the sources.
Your face decides the pace.
This is the general plan for the ingredient, not for your skin. MySkincare scans your face in 3 photos, then builds a routine from that, the products you already use and their ingredients — checked to work together.
Scan my skin in MySkincareFree scan: your skin score. Zone by zone: with a plan.
A guide to what the sources report, not a prediction for your skin.
How to use hyaluronic acid
Despite the name, it doesn’t exfoliate: it holds water, and skin care uses it to moisturize. Here’s how to use it, and what the one study we read actually measured.
- Type
- Moisturizing ingredient
- Use
- Morning and night
- Apply
- On damp skin
- Pregnancy
- Generally OK
Hyaluronic acid, explained
What hyaluronic acid does
Your body makes it, especially in the eyes, joints and skin. Cleveland Clinic says a quarter-teaspoon holds about one and a half gallons of water, and the AAD says it’s known for intense moisturizing. It’s a moisturizing ingredient, not an exfoliating acid.
What a 60-day study found
76 women aged 30 to 60 used a 0.1% hyaluronic acid cream around one eye twice a day for 60 days, with a plain cream around the other. All five molecule sizes improved hydration and elasticity; only the two smallest (50 and 130 kDa) reduced wrinkle depth.
Serum vs fillers
Fillers are hyaluronic acid injected under the skin by a professional to restore shape; serums and creams sit on the surface. Cleveland Clinic says over-the-counter serums and creams are considered safe, reactions are rare, and it’s safe to use if you’re pregnant or nursing.
Get more out of it
Apply moisturizer right after a shower, while skin is still damp, says the AAD. For dry skin, it suggests a cream or ointment rather than a lotion; for oily or acne-prone skin, a gel or less moisturizer, since too much can clog pores.
Strengths, OTC or prescription
Labels rarely give the percentage or the molecule size. These figures come from the one study we read.
| Strength | Sold as | What the source says |
|---|---|---|
| 0.1%Cream | Cosmetic | The strength used in the 60-day study.Pavicic 2011 |
| 50 to 130 kDa“Low molecular weight” | Cosmetic | Better hydration and elasticity, and less wrinkle depth at 60 days.Pavicic 2011 |
| 300 to 2,000 kDaLarger molecules | Cosmetic | Better hydration and elasticity; no significant change in wrinkle depth.Pavicic 2011 |
| InjectedFiller | Professional | Approved for injection under the skin, to restore shape. Not the same as a serum.Cleveland Clinic: hyaluronic acid |
Pairing hyaluronic acid: what to check
In our mixer, all 8 pairs with hyaluronic acid are rated “same routine”. It’s the moisturizing step, so it often goes on after a treatment.
HaWhat not to mix with hyaluronic acidAll 8 actives checked, with morning and night plansMyths, checked
“It’s an acid, so it exfoliates”
No. It’s a moisturizing ingredient that helps skin hold water; it doesn’t loosen dead skin cells like glycolic or salicylic acid.
“A serum works like filler”
Fillers are injected under the skin to restore shape. A serum sits on the surface; in the study we read, a cream improved hydration and elasticity, and small molecules reduced wrinkle depth.
“Avoid it while pregnant”
Cleveland Clinic says it’s safe to use if you’re pregnant or nursing.
More ingredient guides
Put it in your routine order →Purging or breakout? →Pregnancy-safe check →
One face scan. Your whole routine, sorted.
This page answered your question. MySkincare starts from your own skin, and the products you already use.
- 1Scan your face3 photos: front, left profile, right profile.
- 2See your skin scoreFree6 zones scored separately: forehead, eye area, T-zone, both cheeks, chin.
- 3Scan your productsIt reads each ingredient list and says: keep it, watch it or replace it.
- 4Follow your routineMorning and night, checked so your products work together. With reminders.
Questions people ask
What does hyaluronic acid do for skin?
It holds water (a quarter-teaspoon holds about one and a half gallons, says Cleveland Clinic), and the AAD says it’s known for intense moisturizing. In a 60-day study, 0.1% creams improved hydration and elasticity. Cleveland Clinic: hyaluronic acidAAD: moisturizerPavicic 2011
How do I use hyaluronic acid serum?
Right after washing or showering, while your skin is still damp (AAD). The study used it twice a day, morning and night. With dry skin, follow with a cream. AAD: moisturizerPavicic 2011
Can I use hyaluronic acid every day?
Yes. The study used it twice a day for 60 days, and Cleveland Clinic says long-term use can improve skin health. Pavicic 2011Cleveland Clinic: hyaluronic acid
Is hyaluronic acid good for oily or acne-prone skin?
For oily or acne-prone skin, the AAD suggests a gel, or skipping heavy moisturizer, because too much can clog pores. Cleveland Clinic says there isn’t much evidence it helps acne itself. AAD: moisturizerCleveland Clinic: hyaluronic acid
What’s the difference between hyaluronic acid serum and fillers?
Fillers are injected under the skin by a professional to restore shape; serums and creams go on the surface (Cleveland Clinic). Cleveland Clinic: hyaluronic acid
Is hyaluronic acid safe during pregnancy?
Cleveland Clinic says it’s safe to use if you’re pregnant or nursing. Pregnancy-safe check → Cleveland Clinic: hyaluronic acid
Can I use hyaluronic acid with retinol?
Retinol + hyaluronic acid: same routine. Fine to use together. Retinol + hyaluronic acid guide →
Sources
- Plan steps marked “expert consensus” (0 on this page) have no study or label behind their timing
- Not medical advice
American Academy of Dermatologyaad.org
- How to test skin care products (updated Aug. 2021)
A quarter-sized spot on the inner arm or elbow crease, twice a day for 7 to 10 days; wash off and stop at redness, itching or swelling.
- How to pick the right moisturizer (updated Jan. 2022)
Hyaluronic acid is known for intense moisturizing; apply right after a shower while skin is damp; dry skin: cream or ointment; oily or acne-prone: gel or less, too much can clog pores.
Cleveland Clinicclevelandclinic.org
- Hyaluronic acid (updated May 2022)
Made by the body, especially in eyes, joints and skin; a quarter-teaspoon holds about 1.5 gallons of water; fillers are injected, topical products are not; reactions rare, OTC serums considered safe; safe if pregnant or nursing; little evidence for acne.
Studies and other sources
- Pavicic et al., Efficacy of cream-based novel formulations of hyaluronic acid of different molecular weights in anti-wrinkle treatment, J Drugs Dermatol, 2011 (abstract read via Europe PMC)pubmed.ncbi.nlm.nih.gov
76 women aged 30 to 60; 0.1% creams of 50, 130, 300, 800 and 2,000 kDa, twice a day around one eye for 60 days; all improved hydration and elasticity; 50 and 130 kDa also reduced wrinkle depth.