Crepey skin has a specific look: thin, wrinkled, papery texture that resembles crepe paper, especially noticeable on the arms, neck, chest, and under the eyes. It's different from wrinkles, which follow expression lines and fold patterns. Crepey skin is a diffuse loss of structural integrity that makes the skin look fragile and translucent across broad areas. If you're researching supplements for crepey skin, you're looking for something that addresses the underlying structural deficit, not just the surface appearance. The clinical evidence points to a few specific ingredients that can help, and a lot of marketed products that probably can't.
What Causes Crepey Skin (It's Not Just Aging)
Crepey skin results from the simultaneous decline of three structural components in the dermis, combined with thinning of the epidermis.
Collagen loss reduces the structural scaffolding that keeps skin firm. Collagen production drops by roughly 1% to 1.5% per year starting in the mid-twenties, but the visible effect accelerates over time as the cumulative deficit grows. A University of Michigan study documented that aged dermal fibroblasts produce significantly less collagen, driven by both cellular aging and loss of mechanical stimulation from a fragmenting extracellular matrix.[1]
Elastin degradation removes the snap-back resilience that keeps skin from sagging. Unlike collagen, elastin is primarily produced early in life and minimally replaced in adulthood. When elastin fibers break down (through aging, UV exposure, or mechanical stress), the skin loses its ability to bounce back, leading to the loose, papery quality that characterizes crepey texture.
Hyaluronic acid depletion removes the hydrated cushion between structural fibers. HA holds up to 6 liters of water per gram, maintaining the plump, resilient quality of the dermis. As HA levels drop, the skin loses internal volume and becomes more prone to the thin, crinkled appearance of crepey texture.
UV damage accelerates all three processes. UVA radiation penetrates deep into the dermis and directly activates the enzymes (matrix metalloproteinases) that break down collagen and elastin. This is why crepey skin appears earliest on sun-exposed areas: arms, neck, chest, and face.
Which Supplements Have Clinical Evidence for Crepey Skin
Hydrolyzed Collagen Peptides: Strongest Evidence
Hydrolyzed collagen peptides are the most evidence-backed supplement for addressing the structural changes that cause crepey skin. These small collagen fragments (2,000 to 5,000 daltons) are absorbed through the intestinal wall, enter the bloodstream, and reach dermal fibroblasts directly. There, they serve as both raw materials for new collagen synthesis and biological signals that stimulate fibroblasts to increase their structural output.
A 2014 double-blind trial by Proksch and colleagues documented a 65% increase in procollagen type I, an 18% increase in elastin, and a 20% reduction in wrinkle volume after 8 weeks of 2.5 grams daily.[2] The elastin increase is particularly relevant for crepey skin, since elastin loss is a primary driver of the papery texture.
A 2015 study by Asserin and colleagues used high-resolution ultrasound to show that oral collagen peptides increased collagen density in the dermis within 4 weeks and decreased collagen fragmentation, with both improvements persisting through 12 weeks. Skin hydration also improved significantly.[3]
A 2019 trial documented improvements across four parameters directly relevant to crepey skin: hydration, elasticity, roughness, and density, all statistically significant after 12 weeks of 2.5 grams daily.[4]
Two meta-analyses confirm these findings at scale. A 2023 analysis of 26 RCTs with 1,721 participants and a 2021 analysis of 19 RCTs with 1,125 participants both found consistent improvements in hydration, elasticity, and wrinkle reduction.[5][6]
Oral Hyaluronic Acid: Strong Complementary Evidence
Oral hyaluronic acid directly addresses the dehydration component of crepey skin. When ingested, HA fragments are absorbed and distributed to the dermis, where they stimulate fibroblasts to increase their own HA production. This supports the hydrated matrix that collagen and elastin depend on.
A 2025 clinical trial in 150 adults found that 120 mg/day of sodium hyaluronate for 12 weeks significantly improved skin hydration, elasticity, dermal density, epidermal thickness, and wrinkle depth. The dermal density improvement is especially relevant for crepey skin, which is defined partly by that thin, depleted quality.[7]
Vitamin C: Required Cofactor
Vitamin C is essential for collagen synthesis (it's a required cofactor for the enzymes that stabilize collagen's triple-helix structure), but it's not a standalone treatment for crepey skin. Its role is ensuring your body can actually use the collagen building blocks you're providing. Most people get adequate vitamin C from diet, but if you're supplementing with collagen peptides, ensuring adequate C intake is important for maximizing the benefit.
What to Look for in a Crepey Skin Supplement
The supplement market for crepey skin includes everything from collagen powders to biotin gummies to proprietary blends with dozens of ingredients at unspecified doses. Evaluating any product comes down to a few practical criteria.
Active ingredient dosage. Hydrolyzed collagen peptides should be present at 2.5 grams or more per serving (the minimum effective dose established in clinical trials). Oral hyaluronic acid should be at 60 to 200 mg per day. Check the supplement facts panel for actual amounts, not just ingredient names. Many multi-ingredient beauty supplements contain trace amounts that fall well below clinically tested dosages.
Ingredient form. "Collagen" on a label isn't sufficient. Look for "hydrolyzed collagen peptides" specifically. Gelatin, unhydrolyzed collagen, and collagen protein are different forms with different absorption profiles. The clinical trials showing skin structure improvements used hydrolyzed peptides.
Complementary formulation. Since crepey skin involves both collagen/elastin loss and hydration loss, a formulation combining collagen peptides with oral hyaluronic acid addresses both deficits simultaneously. Metabolic Skincare's Deep Structural Support combines these ingredients at clinically relevant dosages for this reason.
What Results to Expect and When
Crepey skin represents advanced structural loss, and expectations should be calibrated accordingly. Supplementation can measurably improve the parameters driving crepey texture (collagen density, elastin levels, hydration, dermal thickness), but it won't make the skin of a 60-year-old look like a 30-year-old's.
At 4 weeks, instrument-detectable changes in collagen density and hydration are documented in clinical trials.[3] You may notice subtle improvements in how the skin feels (less dry, slightly more resilient) before you see visible changes.
At 8 to 12 weeks, visible improvements become more apparent. Skin texture improves, hydration increases, and the thin, papery quality may soften as dermal density increases. Multiple trials show statistically significant improvements across skin parameters at this timeframe.[4][6]
Beyond 12 weeks, continued daily supplementation maintains the structural support. Stopping supplementation leads to gradual decline as the metabolic support is removed, though improvements persist partially for 2 to 4 weeks after discontinuation.
Combining supplementation with topical retinoids (for cell turnover and upper-dermal collagen stimulation), daily sunscreen (to prevent further UV-induced structural degradation), and adequate hydration creates a more comprehensive protocol than any single intervention alone. For more on the research, explore the clinical research overview.
Frequently Asked Questions
What is the best supplement for crepey skin?
Hydrolyzed collagen peptides have the strongest clinical evidence, with two meta-analyses (26 and 19 RCTs) confirming improvements in skin hydration, elasticity, and density. A dose of 2.5 to 10 grams daily for at least 12 weeks is supported by the research. Combining collagen with oral hyaluronic acid (60 to 200 mg/day) addresses both the structural and hydration deficits that cause crepey texture.
Can supplements actually fix crepey skin?
Supplements can measurably improve the structural parameters driving crepey skin. Clinical trials document increased collagen density, improved elastin levels, enhanced hydration, and increased dermal density with oral collagen and HA supplementation. While they won't completely reverse advanced structural loss, they can meaningfully improve skin texture, firmness, and resilience over 8 to 12 weeks.
How long do supplements take to improve crepey skin?
Instrument-detectable improvements in collagen density and hydration appear as early as 4 weeks. Visible improvements in skin texture and firmness typically become noticeable at 8 to 12 weeks of consistent daily supplementation. A 2021 meta-analysis of 19 RCTs confirmed that 90 days of hydrolyzed collagen supplementation reliably improves skin parameters across diverse populations.
Does biotin help with crepey skin?
Biotin (vitamin B7) is widely marketed for skin, but clinical evidence for its effect on crepey skin specifically is minimal. Biotin deficiency can cause skin problems, and supplementation corrects these in deficient individuals. But for people with adequate biotin intake, additional supplementation has not been shown to improve dermal collagen density, elasticity, or the structural parameters that drive crepey texture.
References
- Varani J, Dame MK, Rittie L, et al. Decreased collagen production in chronologically aged skin: roles of age-dependent alteration in fibroblast function and defective mechanical stimulation. Am J Pathol. 2006;168(6):1861-1868. doi:10.2353/ajpath.2006.051302
- Proksch E, Schunck M, Zague V, et al. Oral intake of specific bioactive collagen peptides reduces skin wrinkles and increases dermal matrix synthesis. Skin Pharmacol Physiol. 2014;27(3):113-119. doi:10.1159/000355523
- Asserin J, Lati E, Shioya T, Prawitt J. The effect of oral collagen peptide supplementation on skin moisture and the dermal collagen network: evidence from an ex vivo model and randomized, placebo-controlled clinical trials. J Cosmet Dermatol. 2015;14(4):291-301. doi:10.1111/jocd.12174
- Bolke L, Schlippe G, Gerss J, Voss W. A collagen supplement improves skin hydration, elasticity, roughness, and density: results of a randomized, placebo-controlled, blind study. Nutrients. 2019;11(10):2494. doi:10.3390/nu11102494
- Pu SY, Huang YL, Pu CM, et al. Effects of oral collagen for skin anti-aging: a systematic review and meta-analysis. Nutrients. 2023;15(9):2080. doi:10.3390/nu15092080
- de Miranda RB, Weimer P, Rossi RC. Effects of hydrolyzed collagen supplementation on skin aging: a systematic review and meta-analysis. Int J Dermatol. 2021;60(12):1449-1461. doi:10.1111/ijd.15518
- Doleckova I, Kusnierik P, Berka V, et al. Oral sodium hyaluronate improves skin hydration, barrier function and signs of aging: a randomized, double-blind, placebo-controlled trial in 150 healthy adults. Sci Rep. 2025;16(1):2941. doi:10.1038/s41598-025-32758-5
