Hada Labo Tokyo Anti-Aging Hydrator
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
Speeds up how fast your skin renews itself so old, dull cells shed faster and fresher skin shows through. Builds collagen over time, smoothing fine lines.
Good for: Anti-aging
The protein your skin loses with age, broken down small enough to absorb. Multiple meta-analyses of RCTs show measurable wins in wrinkles, elasticity, and hydration after ~12 weeks. Most evidence is oral, but topical helps surface hydration too.
Good for: Anti-aging, Hydrating
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
Speeds up how fast your skin renews itself so old, dull cells shed faster and fresher skin shows through. Builds collagen over time, smoothing fine lines.
SCCS Revision of the Scientific Opinion on Vitamin A (Retinol, Retinyl Acetate, Retinyl Palmitate), SCCS/1639/21, final version adopted 24-25 October 2022
Chien AL et al. Biomarkers of Tretinoin Precursors and Tretinoin Efficacy in Patients With Moderate to Severe Facial Photodamage: A Randomized Clinical Trial. JAMA Dermatology. 2022;158(8):892-900. doi:10.1001/jamadermatol.2022.1891 — RCT comparing topical retinol precursors vs tretinoin for photoaging; both showed equivalent wrinkle reduction at week 24 with retinol formulation causing 6x less erythema than tretinoin.
MFDS Approved Functional Cosmetic Active — Retinol (anti-wrinkle). Korean Ministry of Food and Drug Safety, Cosmetic Functional Active Ingredient List — listed alongside Adenosine, Retinyl Palmitate, and Polyethoxylated Retinamide in the Korean Functional Cosmetics Codex anti-wrinkle category
The protein your skin loses with age, broken down small enough to absorb. Multiple meta-analyses of RCTs show measurable wins in wrinkles, elasticity, and hydration after ~12 weeks. Most evidence is oral, but topical helps surface hydration too.
Reilly DM, Kynaston L, Naseem S, Proudman E, Laceby D. A Clinical Trial Shows Improvement in Skin Collagen, Hydration, Elasticity, Wrinkles, Scalp, and Hair Condition following 12-Week Oral Intake of a Supplement Containing Hydrolysed Collagen. Dermatology Research and Practice. 2024. — Randomized double-blind placebo-controlled trial; 12-week oral collagen supplement showed 44.6% decrease in collagen fragmentation, +13.8% hydration, +22.7% elasticity, -19.6% wrinkle index vs placebo.
Demir-Dora D, Ozsoy U, Yildirim Y, et al. The Efficacy and Safety of CollaSel Pro® Hydrolyzed Collagen Peptide Supplementation without Addons in Improving Skin Health in Adult Females: A Double Blind, Randomized, Placebo-Controlled Clinical Study. Journal of Clinical Medicine. 2024 Sep 11. — Double-blind RCT (n=112); significant improvements in skin elasticity (p=0.009), hydration (p<0.001), and roughness vs placebo.
Pu SY et al., Effects of Oral Collagen for Skin Anti-Aging: A Systematic Review and Meta-Analysis, Nutrients 2023;15(9):2080 — 26 RCTs / 1,721 patients: hydrolyzed collagen significantly improved skin hydration and elasticity vs placebo across multiple collagen sources
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.
Layering conflicts
Ingredients in this product that can react with common actives. Avoid stacking unless noted.
- Salicylic Acidhigh
Retinol + salicylic acid can over-exfoliate and damage the barrier. Alternate nights.
- Glycolic Acidhigh
Retinol + glycolic acid is a classic barrier-buster. Use on different nights.
- Lactic Acidmedium
Retinol + lactic acid is gentler than glycolic but still alternate nights to be safe.
- Mandelic Acidmedium
Retinol + mandelic acid — alternate nights to preserve barrier integrity.
- Benzoyl Peroxidemedium
Benzoyl peroxide can break down retinol. Use one in the morning and the other at night, or pick a stabilized formula made to combine them.
- Vitamin Clow
Vitamin C and retinol work best at different pH levels. Use vitamin C in the morning and retinol at night.
Similar comparisons
Not medical advice. GlowPal is educational. Patch-test new products and talk to a qualified healthcare professional before changing your routine, especially if you're pregnant, nursing, or have a diagnosed skin condition. See our terms.