Tetrapeptide-56 is a lab-made peptide that may help support skin firmness and reduce fine lines, but research is still early and it's less studied than more common peptides.
Irritation
low
Source
synthetic
Beauty ingredient research
Browse the review database to understand what an ingredient is, what it does in a beauty formula, when it is useful, and when it deserves caution across skincare, haircare, bodycare, makeup, and more.
20769
Reviewed ingredients
524
Low-concern standouts
2884
Need usage caution
Tetrapeptide-56 is a lab-made peptide that may help support skin firmness and reduce fine lines, but research is still early and it's less studied than more common peptides.
Irritation
low
Source
synthetic
Tetrapeptide-57 is a lab-made peptide that may help support collagen and improve skin firmness, but research is still emerging.
Irritation
low
Source
synthetic
Tetrapeptide-58 is a lab-made peptide that may help improve skin firmness and smooth fine lines, but research is still limited compared to more established peptides.
Irritation
low
Source
synthetic
A synthetic peptide that may help firm skin and soften lines, but research is still early and results vary.
Irritation
low
Source
synthetic
Tetrapeptide-59 is a lab-made peptide that may help support collagen production and improve skin firmness, but research is still early.
Irritation
low
Source
synthetic
A synthetic peptide that may help firm skin and soften fine lines, but human studies are still limited.
Irritation
low
Source
synthetic
Tetrapeptide-6 is a gentle, lab-made peptide that may help reduce under-eye puffiness and dark circles by supporting microcirculation and soothing the skin.
Irritation
low
Source
synthetic
Tetrapeptide-61 is a lab-made peptide that may help support skin firmness and reduce fine lines, but research is still early and results vary.
Irritation
low
Source
synthetic
Tetrapeptide-62 is a lab-made peptide that may help support collagen production and improve skin firmness, but research is still early.
Irritation
low
Source
synthetic
Anti-aging agent
Tetrapeptide-62 Norleucyl Oligopeptide-149
A lab-made peptide duo that may help firm skin and soften lines, but research is still early.
Irritation
low
Source
synthetic
Tetrapeptide-63 is a lab-made peptide that may help support skin structure and reduce signs of aging, but research is still early.
Irritation
low
Source
synthetic
Tetrapeptide-64 is a lab-made peptide that may help support collagen and firmness, but research is still early and results vary.
Irritation
low
Source
synthetic
Tetrapeptide-65 is a lab-made peptide that may help support collagen and firm skin, but research is still early and results vary.
Irritation
low
Source
synthetic
Tetrapeptide-67 is a promising synthetic peptide that may help improve skin firmness and reduce fine lines, but research is still early and results vary.
Irritation
low
Source
synthetic
Tetrapeptide-67 Dimer is a lab-made peptide that may help support collagen and improve skin firmness, but research is still early.
Irritation
low
Source
synthetic
A gentle, research-backed peptide that calms skin inflammation and supports collagen for a smoother, more resilient complexion.
Irritation
low
Source
synthetic
Anti-aging agent
Thermotoga Maritima Polypeptide-1, Oligopeptide-105, Oligopeptide-106, Hexapeptide-40
A biotech peptide blend that may help support skin firmness and resilience, though human studies are limited.
Irritation
low
Source
biotech
A biotech peptide from an extremophile microbe that may help skin cope with environmental stress, but human research is still limited.
Irritation
low
Source
biotech
A lab-made peptide that may help improve skin firmness and reduce the look of fine lines, but research is still early.
Irritation
low
Source
synthetic
A hybrid peptide-antioxidant ingredient that may help firm skin and fight oxidative stress, but human data is still limited.
Irritation
low
Source
semi-synthetic
A synthetic peptide-lipoic acid hybrid that may help firm skin and soften lines, but human data is still limited.
Irritation
low
Source
synthetic
A synthetic peptide that pairs lipoic acid with a tripeptide to help firm skin and fight oxidative stress, generally well-tolerated.
Irritation
low
Source
synthetic
A synthetic peptide that combines a lipoic acid-like antioxidant with a signaling peptide to help protect and firm skin, though human studies are limited.
Irritation
low
Source
synthetic
A novel peptide complex from tobacco plants that may support collagen and skin firmness, but research is still early.
Irritation
low
Source
biotech
A gentle peptide that may help calm redness and support skin barrier comfort, though human studies are still limited.
Irritation
low
Source
synthetic
A biotech peptide from transgenic rice that may support collagen and skin firmness, but human research is still limited.
Irritation
low
Source
biotech
A biotech rice peptide that may support collagen and skin firmness, but human research is still limited.
Irritation
low
Source
biotech
A biotech peptide from tobacco that may help reduce fine lines, but research is still limited compared to traditional peptides.
Irritation
low
Source
biotech
A synthetic peptide that may help soften expression lines and improve skin firmness, but human data is limited.
Irritation
low
Source
synthetic
A lab-made peptide that helps strengthen the skin's foundation, making it a gentle but effective option for firming and anti-aging routines.
Irritation
low
Source
synthetic
A well-studied synthetic peptide that helps firm skin and reduce fine lines by boosting collagen production.
Irritation
low
Source
synthetic
Tripeptide-41 is a lab-made peptide that signals skin to produce more collagen, helping reduce fine lines and improve firmness with minimal irritation risk.
Irritation
low
Source
synthetic
A synthetic peptide that may help reduce fine lines and improve skin firmness by signaling collagen production.
Irritation
low
Source
synthetic
A lab-made peptide that signals skin to produce more collagen, helping reduce fine lines and improve firmness with minimal irritation.
Irritation
low
Source
synthetic
A lab-made peptide that may help support skin firmness and reduce fine lines, but human studies are still limited.
Irritation
low
Source
synthetic
A synthetic peptide that may help support collagen and reduce fine lines, but human studies are still limited.
Irritation
low
Source
synthetic
A synthetic peptide that may help support collagen and improve skin firmness, but more human studies are needed.
Irritation
low
Source
synthetic
Tripeptide-54 is a lab-made peptide that may help support collagen production and improve skin firmness, but research is still early.
Irritation
low
Source
synthetic
Tripeptide-57 is a lab-made peptide that may help support skin firmness and smoothness, but research is still early and results vary.
Irritation
low
Source
synthetic
Tripeptide-58 is a lab-made peptide that may help improve skin firmness and smooth fine lines, but research is still limited compared to more established peptides.
Irritation
low
Source
synthetic
Tripeptide-61 is a lab-made peptide that may help firm skin and soften wrinkles, but research is still emerging compared to more established peptides.
Irritation
low
Source
synthetic
A synthetic peptide that may help support collagen and improve skin firmness, but human data is still limited.
Irritation
low
Source
synthetic
Tripeptide-63 is a lab-made peptide that encourages your skin to produce more collagen and elastin, helping reduce fine lines and improve firmness.
Irritation
low
Source
synthetic
A synthetic peptide that may help support skin firmness and repair, but evidence is still emerging.
Irritation
low
Source
synthetic
Tripeptide-66 is a lab-made peptide that may help support collagen and improve skin firmness, but research is still early.
Irritation
low
Source
synthetic
A synthetic peptide that may help support collagen and improve skin firmness, but research is still emerging.
Irritation
low
Source
synthetic
A synthetic peptide that may help support skin firmness and reduce fine lines, but research is still early and results vary.
Irritation
low
Source
synthetic
A gentle peptide complex that may help calm redness and strengthen the skin barrier, but research is still early.
Irritation
low
Source
biotech
A promising synthetic peptide-antioxidant hybrid that may help protect and firm skin, but human studies are still limited.
Irritation
low
Source
synthetic
A synthetic peptide that may help brighten under-eye circles by combining antioxidant and peptide actions, though human studies are limited.
Irritation
low
Source
synthetic
A lab-made peptide paired with an antioxidant that may help smooth fine lines, but human studies are still limited.
Irritation
low
Source
synthetic
A lab-made peptide that may help smooth wrinkles and improve skin firmness, but human studies are still limited.
Irritation
low
Source
synthetic
A lab-made peptide fused with an antioxidant that may help protect skin from environmental stress and support a smoother appearance, though human studies are still limited.
Irritation
low
Source
synthetic
A novel synthetic peptide with very limited research in cosmetics; its benefits are not well-established for everyday skincare.
Irritation
low
Source
biotech
A synthetic peptide that may help firm skin and reduce fine lines by signaling collagen production.
Irritation
low
Source
synthetic
A synthetic peptide that may help improve skin firmness and smoothness, but research is still emerging.
Irritation
low
Source
synthetic
A synthetic peptide that mimics a calming signal to help soothe reactive skin and support barrier repair.
Irritation
low
Source
synthetic
A synthetic peptide that may help firm skin and soften fine lines, with low irritation risk but limited independent research.
Irritation
low
Source
synthetic
A synthetic peptide that may help improve skin firmness and reduce fine lines, with low irritation potential.
Irritation
low
Source
synthetic