Ingredients / Peptides

Peptides

Short chains of amino acids. A diverse category with varied evidence depending on the specific peptide and claim.

Understanding evidence levels
In VitroCell or tissue culture experiments — no human or animal data.
Ex VivoSkin model or tissue experiments — not in living humans.
Animal StudyResults in animals only — may or may not translate to humans.
Small Human StudySmall or uncontrolled human study — preliminary results.
Controlled TrialControlled human study (often randomized) — stronger evidence.
Systematic ReviewSummary and analysis of existing published studies.
Meta-AnalysisStatistical pooling of results from multiple studies.
GuidelineProfessional guidance or consensus statement from a dermatology society.

Research findings(129)

Notable findingA finding from a controlled trial, systematic review, or meta-analysis with noteworthy results.Controlled TrialControlled human study, often randomized. Stronger evidence.AcnePublished: June 5, 2026

EGFR Inhibitors May Affect Skin Barrier Function and Microbiome

Researchers studied how epidermal growth factor receptor inhibitors (EGFRIs) affect the skin in patients with solid cancers. They found that EGFRIs may compromise the skin's barrier function and alter the levels of certain antimicrobial peptides. The study also suggests that EGFRIs may change the types of bacteria living on the skin.

Why it matters: Understanding how EGFRIs affect the skin may help doctors and patients manage side effects and develop new treatments for skin problems.

This study involved a small number of patients and had a limited follow-up period of up to 48 weeks.

PubMed
Animal StudyResults in animals only. May or may not translate to humans.WrinklesPublished: June 4, 2026

Peptide from Frog Skin May Help Reduce UVB-Induced Skin Aging

Researchers studied a peptide called OA-AL14 from the skin secretions of a frog species. They found that it may help alleviate skin photoaging caused by UVB radiation in lab experiments and animal studies. OA-AL14 showed antioxidant activity and activated autophagy, a natural process that helps cells recycle damaged components.

Why it matters: This research may contribute to a better understanding of how to prevent or treat skin photoaging, a condition that can lead to premature aging and skin damage.

This study was conducted in lab experiments and animal models, and its findings may not directly translate to human skin. Further research is needed to confirm its effectiveness and safety in humans.

PubMed
Animal StudyResults in animals only. May or may not translate to humans.AcnePublished: June 1, 2026

Lactobacillus gasseri proteins may help reduce acne inflammation and sebum production

Researchers studied the potential benefits of proteins from Lactobacillus gasseri on acne. They found that these proteins may help reduce inflammation and sebum production in lab experiments and animal studies. The proteins showed antibacterial and anti-inflammatory effects, and may also help protect the skin barrier.

Why it matters: This research could lead to a better understanding of how to manage acne symptoms and improve skin health.

This study was conducted in a lab and using animal models, and more research is needed to confirm its findings in humans. The study's results may not translate directly to human skin or acne conditions.

PubMed
Animal StudyResults in animals only. May or may not translate to humans.Redness / Facial RednessPublished: June 1, 2026

Botulinum Toxin A May Help Reduce Rosacea-Like Inflammation

Researchers studied the effects of botulinum toxin A on rosacea-like skin lesions in mice. They found that it may alleviate skin damage, reduce redness, and improve skin barrier function. However, more research is needed to confirm these findings.

Why it matters: This study may contribute to a better understanding of rosacea and potential treatments for this chronic inflammatory disorder.

This study was conducted in a mouse model and its findings may not directly translate to human skin. Further research is needed to confirm the efficacy of botulinum toxin A in treating rosacea.

PubMed
Small Human StudySmall or uncontrolled human study. Results are preliminary.Skin Barrier DamagePublished: May 29, 2026

Newborns with family history of allergies may develop IgE autoantibodies

Researchers studied newborns with a family history of allergies to see if they develop IgE autoantibodies, which are linked to atopic dermatitis. They found that some newborns had these autoantibodies at birth. The study aims to understand how these autoantibodies develop and if they can predict the development of atopic dermatitis.

Why it matters: This study may help us understand the early signs of atopic dermatitis and how to prevent it in high-risk children.

This study is observational and does not involve any interventions. The sample size is relatively small, with 500 newborns, and the study only follows them for 24 months.

PubMed
Animal StudyResults in animals only. May or may not translate to humans.Skin Barrier DamagePublished: May 21, 2026

Researchers studied a potential new approach to prevent skin damage from Psoroptic mange

Scientists investigated a protein called Psoroptes ovis macrophage migration inhibitory factor (PsoMIF) that may contribute to skin barrier dysfunction in psoroptic mange. They found that a specific antibody targeting PsoMIF improved skin barrier function in a rabbit model. This suggests that targeting PsoMIF may be a potential new strategy for preventing skin damage from psoroptic mange.

Why it matters: Understanding how skin barrier dysfunction contributes to psoroptic mange may help researchers develop new treatments for this condition.

This study was conducted in a rabbit model and its findings may not be directly applicable to humans. Further research is needed to confirm these results.

PubMed
Notable findingA finding from a controlled trial, systematic review, or meta-analysis with noteworthy results.Controlled TrialControlled human study, often randomized. Stronger evidence.Sensitive SkinPublished: May 18, 2026

Topical calcineurin inhibitors may help restore skin barrier in atopic dermatitis

Researchers studied how topical calcineurin inhibitors affect the skin barrier in people with atopic dermatitis. They found that these treatments may improve skin hydration, reduce inflammation, and help restore the skin's natural barrier. However, more studies are needed to confirm these findings.

Why it matters: Understanding how topical calcineurin inhibitors affect the skin barrier could lead to better treatment options for people with atopic dermatitis.

This study focused on patients with atopic dermatitis, and more research is needed to confirm the long-term effects of topical calcineurin inhibitors on skin structure and the skin microbiome.

PubMed
Ex VivoSkin model or tissue experiments. Not in living humans.Skin Barrier DamagePublished: May 5, 2026

Cooling Device May Help Enhance Skin Penetration for Skincare Treatments

Researchers studied a cooling device called TargetCool to see if it could help skincare products penetrate deeper into the skin. They found that it may enhance skin penetration, especially when used with microneedling devices. However, more research is needed to confirm these findings.

Why it matters: This study may help improve our understanding of how to deliver skincare treatments more effectively.

This study was conducted in a lab using human skin samples, and the results may not translate to real-world use. The study only looked at one specific skincare ingredient and did not examine its effects on skin health or appearance.

PubMed
Notable findingA finding from a controlled trial, systematic review, or meta-analysis with noteworthy results.Controlled TrialControlled human study, often randomized. Stronger evidence.WrinklesPublished: May 1, 2026

Synthetic Epidermal Growth Factor May Help Improve Facial Appearance

A small study compared the effects of synthetic and human-derived epidermal growth factor on facial appearance and how people perceive it. Researchers found that a synthetic version may be more effective at improving skin texture and firmness, and people who used it reported higher satisfaction. However, the study had limitations and more research is needed.

Why it matters: This study may help us understand how different types of epidermal growth factor affect facial appearance and how people perceive it, which could lead to new skincare treatments.

This was a small, 12-week study involving only 20 female participants, and the results may not be generalizable to other populations. The study also had exploratory psychosocial perception outcomes that are limited by the non-validated nature of the rating instrument.

PubMed
Notable findingA finding from a controlled trial, systematic review, or meta-analysis with noteworthy results.Controlled TrialControlled human study, often randomized. Stronger evidence.Fine LinesPublished: May 1, 2026

Combination Treatment May Help Improve Signs of Photoaging

Researchers studied a combination of injectable collagen solution and topical serum to see if it could improve signs of photoaging, such as wrinkles and skin firmness. A small study found that participants who received the combination treatment reported improved skin satisfaction and showed better outcomes compared to those who received the injectable solution alone. However, the study had limitations and more research is needed to confirm these findings.

Why it matters: This study may help skincare professionals and consumers understand new treatment options for photoaging, a common concern for many people.

This study had a small sample size of 54 participants and was conducted at a single center. The study duration was 12 weeks, which may not be long enough to fully assess the effects of the treatment.

PubMed
In VitroCell or tissue culture experiments. No human or animal data.Skin Barrier DamagePublished: April 28, 2026

Plant Extract Mixture May Help with Psoriasis Symptoms

Researchers studied a mixture of plant extracts from apple, curly kale, and green tea to see if it could help with psoriasis symptoms. They found that the extract may have anti-inflammatory and barrier-strengthening effects, and it activated a receptor that could help reduce inflammation. However, more research is needed to confirm these findings.

Why it matters: This study could lead to a better understanding of how plant extracts might be used to treat psoriasis, a chronic inflammatory skin disease.

This study was conducted in a lab using a 2D psoriasis model, and the results may not translate to human skin. Further research is needed to confirm the extract's effects in real-world psoriasis patients.

PubMed
Small Human StudySmall or uncontrolled human study. Results are preliminary.Sensitive SkinPublished: April 24, 2026

New Skincare Formula May Help Soothe Sensitive Skin

Researchers created a new skincare formula with pro-regenerative properties to help patients with damaged skin, such as those who have undergone radiation therapy. The formula, which contains two specific peptides, was tested in lab experiments and on human skin cells. The results suggest that the formula is stable, safe, and effective in moisturizing and soothing sensitive skin.

Why it matters: This study may help us better understand how to care for sensitive skin and alleviate symptoms associated with skin damage.

This study was conducted on a small number of participants and was limited to in vitro and in vivo testing. Further research is needed to confirm the findings and assess the formula's long-term effects.

PubMed