--- title: "Hyaluronic Acid Hydrating Serum — Evidence, Benefits & Where… | Magellan" description: "Hyaluronic Acid Hydrating Serum — Hyaluronic acid (HA, hyaluronan) is a glycosaminoglycan and a major component of the skin's extracellular matrix, where…" url: "https://magellanlongevity.com/p/184.md" canonical: "https://magellanlongevity.com/p/184.html" html: "https://magellanlongevity.com/p/184.html" type: "product" section: "Skin & Topical Longevity" evidence_grade: "Moderate evidence" evidence_tier: "moderate" citations: 17 product_id: 184 price_usd: 9.9 updated: 2026-09-02 author: "Gabriel Radu, DO" author_credentials: "Physiatrist (PM&R). NY medical license 275110. NPI 1376861765." publisher: "Magellan Longevity" content_format: "markdown" license: "Educational content — not medical advice" --- # Hyaluronic Acid Hydrating Serum [Home](https://magellanlongevity.com/) › [Skin & Topical Longevity](https://magellanlongevity.com/c/6.md) › Hyaluronic Acid Hydrating Serum **HTML version:** https://magellanlongevity.com/p/184.html · **In the Magellan app:** https://magellanlongevity.com/#/product/184 ## Key facts | Field | Value | | --- | --- | | Product | Hyaluronic Acid Hydrating Serum | | Category | [Skin & Topical Longevity](https://magellanlongevity.com/c/6.md) | | Evidence grade | Moderate evidence (B) | | Peer-reviewed citations | 17 | | Typical listed price | $9.90 (check the live price) | | Where to buy | [Search Amazon](https://www.amazon.com/s?k=Hyaluronic%20Acid%20Hydrating%20Serum&tag=magellanlong-20) | | Catalog ID | 184 | ## What it is Hyaluronic acid (HA, hyaluronan) is a glycosaminoglycan and a major component of the skin's extracellular matrix, where it can bind up to roughly 1,000 times its weight in water and is described as the key molecule controlling skin moisture. Its content and synthesis decline with age, contributing to reduced hydration and elasticity and to the appearance of fine lines. Applied topically in creams and serums, HA acts as a hygroscopic humectant that draws and holds water in the stratum corneum and superficial skin; low-molecular-weight HA penetrates more deeply, while high-molecular-weight HA forms a surface hydrating film—the rationale for multi-weight serums. It is widely used in cosmeceuticals for hydration and anti-aging. ## Its role in longevity Multiple randomized and controlled clinical studies of topical HA formulations report significant improvements in skin hydration and elasticity, with low-molecular-weight HA associated with reduced wrinkle depth; HA serums have also improved skin surface topography and measured HA content in treated skin. Oral HA now has several placebo-controlled randomized trials (and recent meta-analytic support) showing improved hydration, elasticity and wrinkle scores over 8-12 weeks, though most of these trials are small and industry-funded. However, effects on wrinkles are generally modest, most topical trials are short (weeks to a few months), many test HA combined with other active ingredients, and much of the improvement reflects surface hydration and plumping rather than structural rebuilding of the dermis. This evidence describes hyaluronic acid and its formulations in general, not this specific commercial serum. ## Evidence grade: Moderate evidence - **What the grade means:** Curated grade based on the human and mechanistic evidence for this compound. - **Dose used in studies:** Studied topical creams use about 0.1% HA; oral HA trials used 120 mg/day for 8-12 weeks - **What this grade does not say:** Controlled studies consistently show improved skin hydration and elasticity with modest fine-line reduction; effects are surface-level and reversible, not structural rejuvenation. Oral HA has placebo-controlled support but the trials are small and mostly industry-funded. Not proven for longevity. ## In the news - **Hyaluronic Acid: What It Is, Benefits, How To Use & Side Effects** — Cleveland Clinic 2022 [Read it](https://my.clevelandclinic.org/health/articles/22915-hyaluronic-acid) > Hyaluronic acid helps skin stretch and flex and reduces skin wrinkles and lines. - **11 benefits of hyaluronic acid for the face and body** — Medical News Today 2023 [Read it](https://www.medicalnewstoday.com/articles/hyaluronic-acid-benefits) > The study reported up to a 40% decrease in the depth of wrinkles and an up to 55% increase in skin firmness and elasticity compared with participants who did not apply the acid. ## The research Peer-reviewed studies on the active compound. Quotes are verbatim from the cited abstract. Research describes the active mechanism and is not a claim about this specific product. ### Cited studies 1. **Evidence: hygroscopic dermal hydration** Dermatol Ther 2022 · [PMID 36200921](https://pubmed.ncbi.nlm.nih.gov/36200921/) · [DOI 10.1111/dth.15903](https://doi.org/10.1111/dth.15903) > hyaluronic acid is well tolerated and effective for improving skin hydration and rejuvenation 2. **Effectiveness of topical hyaluronic acid in xerosis cutis treatment in elderly: a double-blind, randomized controlled trial** Arch Dermatol Res 2024 · [PMID 38829483](https://pubmed.ncbi.nlm.nih.gov/38829483/) · [DOI 10.1007/s00403-024-03003-2](https://doi.org/10.1007/s00403-024-03003-2) > application of hyaluronic acid to dry skin of elderly resulted in significant improvements in skin hydration 3. **Efficacy of cream-based novel formulations of hyaluronic acid of different molecular weights in anti-wrinkle treatment.** J Drugs Dermatol 2011 · [PMID 22052267](https://pubmed.ncbi.nlm.nih.gov/22052267/) > Topical application of all 0.1% HA formulations used in this study led to significant improvement in skin hydration and elasticity. Application of low-molecular-weight (LMW) HA was associated with significant reduction of wrinkle depth, which may be due to better penetration abilities of LMW HA. 4. **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](https://pubmed.ncbi.nlm.nih.gov/29601621/) > Areas treated with RHA serum showed statistically significant improvements in skin surface topography and hydration compared to untreated areas. 5. **Clinical Evaluation of a Multi-Modal Facial Serum That Addresses Hyaluronic Acid Levels in Skin.** J Drugs Dermatol 2017 · [PMID 28915283](https://pubmed.ncbi.nlm.nih.gov/28915283/) > Statistically-significant improvements in all facial skin attributes (weeks 4, 8, and 12), stratum corneum hydration (week 12), and transepidermal water loss (week 12) were observed. 6. **Instrumental, clinical and subjective evaluation of the efficacy of a cosmetic treatment for home use.** J Cosmet Laser Ther 2018 · [PMID 30040516](https://pubmed.ncbi.nlm.nih.gov/30040516/) · [DOI 10.1080/14764172.2018.1502454](https://doi.org/10.1080/14764172.2018.1502454) > The efficacy of the topical products is confirmed by subjective, clinical and instrumental assessment. 7. **Assessment of the efficacy of a new complex antisensitive skin cream.** J Cosmet Dermatol 2018 · [PMID 29356277](https://pubmed.ncbi.nlm.nih.gov/29356277/) · [DOI 10.1111/jocd.12486](https://doi.org/10.1111/jocd.12486) > In addition, statistically significant improvement of skin hydration and texture parameters (eg, smoothness and roughness) was demonstrated. 8. **Antiwrinkle efficacy of 1-ethyl-β-N-acetylglucosaminide, an inducer of epidermal hyaluronan production.** Skin Res Technol 2021 · [PMID 34455631](https://pubmed.ncbi.nlm.nih.gov/34455631/) · [DOI 10.1111/srt.13090](https://doi.org/10.1111/srt.13090) > Treatment with β-NAG2-formulated lotion significantly improved skin hydration and elasticity and reduced skin wrinkling in crow's foot areas when compared to the placebo formulation. 9. **Inhibitory effects of Sanguisorba officinalis root extract on HYBID (KIAA1199)-mediated hyaluronan degradation and skin wrinkling.** Int J Cosmet Sci 2019 · [PMID 30485450](https://pubmed.ncbi.nlm.nih.gov/30485450/) · [DOI 10.1111/ics.12505](https://doi.org/10.1111/ics.12505) > Treatment with Sanguisorba officinalis root extract-formulated lotion significantly improved skin elasticity, and reduced skin wrinkling scores at the outer eye corner compared with the placebo formulation. 10. **Evaluation of Antioxidants' Ability to Enhance Hyaluronic-acid Based Topical Moisturizers.** J Clin Aesthet Dermatol 2024 · [PMID 38495545](https://pubmed.ncbi.nlm.nih.gov/38495545/) > In skin, HA plays an essential role as a humectant, capable of binding up to 1,000 times its mass with water, providing skin with moisture and viscoelastic properties. 11. **Hyaluronic acid, a promising skin rejuvenating biomedicine: A review of recent updates and pre-clinical and clinical investigations on cosmetic and nutricosmetic effects.** Int J Biol Macromol 2018 · [PMID 30287361](https://pubmed.ncbi.nlm.nih.gov/30287361/) · [DOI 10.1016/j.ijbiomac.2018.09.188](https://doi.org/10.1016/j.ijbiomac.2018.09.188) > This has been achieved via soft tissue augmentation, improved skin hydration, collagen and elastin stimulation, and face volume restoration. 12. **Hyaluronic acid: A key molecule in skin aging.** Dermatoendocrinol 2012 · [PMID 23467280](https://pubmed.ncbi.nlm.nih.gov/23467280/) · [DOI 10.4161/derm.21923](https://doi.org/10.4161/derm.21923) > The key molecule involved in skin moisture is hyaluronic acid (HA) that has unique capacity in retaining water. 13. **A Pilot Study to Evaluate the Efficacy and Tolerability of a Topical Combination Serum for the Improvement of Aged Skin.** J Drugs Dermatol 2023 · [PMID 38051835](https://pubmed.ncbi.nlm.nih.gov/38051835/) · [DOI 10.36849/JDD.6835](https://doi.org/10.36849/JDD.6835) > Skin radiance, tone, smoothness, texture, and overall appearance improved significantly with continued use of the Test Product up to week 12. 14. **Oral intake of a new full-spectrum hyaluronan improves skin profilometry and ageing: a randomized, double-blind, placebo-controlled clinical trial.** Eur J Dermatol 2021 · [PMID 34933842](https://pubmed.ncbi.nlm.nih.gov/34933842/) · [DOI 10.1684/ejd.2021.4176](https://doi.org/10.1684/ejd.2021.4176) > Skin became more hydrated (+10.6%) and protected from dehydration, with a decrease in both wrinkle depth (-18.8%) and volume (-17.6%) and increase in elasticity and firmness (+5.1%). 15. **Multicenter evaluation of a topical hyaluronic acid serum.** Journal of cosmetic dermatology 2022 · [PMID 35833366](https://pubmed.ncbi.nlm.nih.gov/35833366/) > A multicenter clinical evaluation found a topical hyaluronic acid serum measurably improved skin hydration and visible signs of aging. 16. **Oral Hyaluronan Relieves Wrinkles and Improves Dry Skin: A 12-Week Double-Blinded, Placebo-Controlled Study.** Nutrients 2021 · [PMID 34203487](https://pubmed.ncbi.nlm.nih.gov/34203487/) > In a double-blind placebo-controlled trial of 40 adults, 120 mg/day oral hyaluronan for 12 weeks significantly improved wrinkle scores, stratum-corneum water content, TEWL and elasticity (industry-funded). 17. **Oral hyaluronan relieves wrinkles: a double-blinded, placebo-controlled study over a 12-week period.** Clinical, cosmetic and investigational dermatology 2017 · [PMID 28761365](https://pubmed.ncbi.nlm.nih.gov/28761365/) > A second independent double-blind placebo-controlled trial confirmed that 12 weeks of oral hyaluronan significantly reduces wrinkles versus placebo. ## Where to buy [Search Amazon for Hyaluronic Acid Hydrating Serum](https://www.amazon.com/s?k=Hyaluronic%20Acid%20Hydrating%20Serum&tag=magellanlong-20) — affiliate 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Nothing here is intended to diagnose, treat, cure, or prevent any disease. Talk to your physician before starting any supplement or device, especially if you are pregnant, nursing, or taking medication. Editorial firewall: evidence grades are assigned from the published research and are independent of any affiliate commission. As an Amazon Associate, Magellan Longevity earns from qualifying purchases. Reviewed for accuracy by a board-certified physician (DO).