Quadruple Hyaluronic Acid Serum 5%
What it's good for
Key actives from our research database. Click any to read the full evidence dossier.
A pure hydrator that holds water in your skin. Makes skin look plumper and smoother almost immediately.
Good for: Hydrating
A workhorse hydrator that pulls water into your skin. In nearly every good moisturizer for a reason.
Good for: Hydrating
An ancient humectant and antimicrobial ingredient with a long research track record. Its sugar matrix and flavonoids help draw in moisture and support skin comfort; formulas pairing honey with beeswax and olive oil have shown improvement in dry, irritation-prone skin in controlled trials.
Good for: Anti-inflammatory, Anti-acne, Hydrating
A fruit-derived AHA that exfoliates and antioxidizes. It shares the same basic mechanism as glycolic and lactic acid but is weaker gram-for-gram; in practice you'll see it doing dual duty (a little exfoliation plus pH stabilisation) in multi-acid toners and serums. When it appears low on an ingredient list, it's adjusting pH; higher up, it's contributing real exfoliation.
Good for: Exfoliating, Antioxidant
Evidence behind the ingredients
Real citations from our research database, one per tracked active in this product. Click any ingredient name to read its full evidence dossier.
A pure hydrator that holds water in your skin. Makes skin look plumper and smoother almost immediately.
Karabat MU, Tuncer MC. Effects of hyaluronic acid on skin at the cellular level: a systematic review. Rev Assoc Med Bras. 2025;71(8):e20250208. — Systematic review of 45 studies found low-molecular-weight HA stimulates keratinocyte proliferation and migration while high-molecular-weight HA drives skin hydration, supporting topical HA as an effective skin-hydrating and barrier-supporting ingredient.
Bravo B et al., Benefits of topical hyaluronic acid for skin quality and signs of skin aging: From literature review to clinical evidence, Dermatology and Therapy 2022;12(12):2657-2680 — HA-based cosmeceuticals reliably improve hydration and signs of skin aging
Lee SG et al., Hyaluronan Oligosaccharides Improve Rosacea-Like Phenotype through Anti-Inflammatory and Epidermal Barrier-Improving Effects, Annals of Dermatology 2020
A workhorse hydrator that pulls water into your skin. In nearly every good moisturizer for a reason.
Danby SG et al., Different types of emollient cream exhibit diverse physiological effects on the skin barrier in adults with atopic dermatitis, Clinical and Experimental Dermatology 2022;47(6):1154-1164 — glycerol+urea emollient delivered superior barrier-strengthening and irritant protection
Youssef R et al., Glycerol 85% efficacy on atopic skin and its microbiome: a randomized controlled trial, Journal of Dermatological Treatment 2021;32(7):730-736 — topical glycerol 85% RCT on atopic skin
Evans NJ et al., Human axillary skin condition is improved following incorporation of glycerol into the stratum corneum from an antiperspirant formulation, Archives of Dermatological Research 2017;309(9):739-748 — 4% glycerol penetrated axillary SC, reduced irritation, improved hydration
An ancient humectant and antimicrobial ingredient with a long research track record. Its sugar matrix and flavonoids help draw in moisture and support skin comfort; formulas pairing honey with beeswax and olive oil have shown improvement in dry, irritation-prone skin in controlled trials.
Semprini A, Braithwaite I, Corin A, et al. Randomised controlled trial of topical kanuka honey for the treatment of acne. BMJ Open. 2016 Feb 1;6(2):e009448. — RCT: kanuka honey + antibacterial soap was NOT significantly more effective than antibacterial soap alone for acne; primary endpoint not met.
Jull AB, Cullum N, Dumville JC, Westby MJ, Deshpande S, Walker N. Honey as a topical treatment for wounds. Cochrane Database Syst Rev. 2015;(3):CD005083.
Mandal MD, Mandal S. Honey: its medicinal property and antibacterial activity. Asian Pac J Trop Biomed. 2011;1(2):154-160.
+−1 more ingredient
A fruit-derived AHA that exfoliates and antioxidizes. It shares the same basic mechanism as glycolic and lactic acid but is weaker gram-for-gram; in practice you'll see it doing dual duty (a little exfoliation plus pH stabilisation) in multi-acid toners and serums. When it appears low on an ingredient list, it's adjusting pH; higher up, it's contributing real exfoliation.
Tang SC, Yang JH. Dual Effects of Alpha-Hydroxy Acids on the Skin. Molecules. 2018;23(4):863.
Yamamoto Y, Uede K, Yonei N, Kishioka A, Ohtani T, Furukawa F. Effects of alpha-hydroxy acids on the human skin of Japanese subjects: the rationale for chemical peeling. Journal of Dermatology. 2006 Jan;33(1):16-22. — Clinical-mechanistic study in Japanese subjects demonstrating AHA (including citric acid class) keratolytic and epidermal renewal effects as rationale for chemical peeling.
Bernstein EF, Underhill CB, Lakkakorpi J, et al. Citric acid increases viable epidermal thickness and glycosaminoglycan content of sun-damaged skin. Dermatologic Surgery. 1997 Aug;23(8):689-694. — Mechanistic study showing topical citric acid increased viable epidermal thickness and dermal glycosaminoglycans in sun-damaged skin, similar to glycolic acid and retinoic acid.
Sources: 10 clinical journals and regulatory databases across the US, EU, Korea, Japan, and China. Every entry points to a specific document. See methodology for the full list and what each outcome label means.
Full ingredient list
Everything on the package label, not just the tracked actives above.
+−Show all 23 ingredients
Listed in the order printed on the package. By regulation, ingredients at 1% or higher are listed in descending order by concentration, so the first entry is the largest part of the formula.
- Aqua
- Glycerin
- Propanediol
- Hydrolyzed Hyaluronic Acid
- Sodium Hyaluronate
- Apricot Kernel Oil Polyglyceryl-6 Esters
- Polyglyceryl-6 Oleate
- Caprylyl Glycol
- Polyglyceryl-10 Oleate
- Acrylates/C10-30 Alkyl Acrylate Crosspolymer
- Magnolol
- Kaempferol
- Tetrahexyldecyl Ascorbate
- Glycolipids
- Glycine Soja (Soybean) Sterols
- Tocopheryl Acetate
- Phenoxyethanol
- Sorbitan Palmate
- Potassium Sorbate
- Sodium Hydroxide
- Glyceryl Polyacrylate
- Xanthan Gum
- Hexylene Glycol
Similar comparisons
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