Beauty ingredients explained in plain English

A synthetic scent ingredient that adds a warm, woody note but offers no skincare benefit and may be unnecessary for sensitive noses.

Tetramethylammonium chloride is a synthetic salt used in tiny amounts as a processing aid; it has limited direct skin benefit and moderate irritation potential at higher concentrations.

A synthetic fragrance ingredient that adds scent but may cause irritation in sensitive individuals.

A synthetic antioxidant that helps shield skin from oxidative damage, but research is still limited compared to more established antioxidants.

A gentle, stabilized antioxidant that may help defend skin against pollution and UV damage without irritation.

A synthetic scent ingredient that adds a warm, woody note but offers no skincare benefits and may cause sensitivity in some people.

A synthetic scent ingredient that adds a warm, woody note but offers no skin benefit and may cause sensitivity in some people.

A synthetic fragrance ingredient that adds a pleasant floral note but offers no skincare benefits and may be unnecessary for sensitive skin.

A synthetic emollient that helps soften and smooth skin with a low risk of irritation or clogged pores.

Tetramethylhexanal is a synthetic fragrance ingredient that adds a fresh, citrusy note to products, but it may cause skin irritation in sensitive individuals.

A synthetic scent compound that adds a fresh note to products but may cause irritation in sensitive individuals.

A synthetic film-former that helps products stay put, but it's not a star ingredient for skin health.

Tetramethylpyrazine is a gentle antioxidant from fermented sources that may help calm skin and support microcirculation, though human skincare studies are still limited.

Tetrandrine is a plant alkaloid with promising anti-inflammatory and antioxidant benefits, but research in topical skincare is still emerging.

Tetrapeptide-1 is a gentle peptide that may help support collagen and reduce fine lines, but research is still emerging.

Tetrapeptide-11 is a synthetic peptide that may help support skin firmness and reduce fine lines, but research is still early and results can be subtle.

Tetrapeptide-15 is a synthetic peptide that may help support collagen and reduce the appearance of fine lines, but research is still emerging.

A lab-made peptide that may help firm skin and reduce fine lines, but research is still emerging.

Tetrapeptide-2 is a gentle peptide that may help firm skin and reduce under-eye bags, but research is still emerging.

Tetrapeptide-21 is a lab-made peptide that signals skin to produce more collagen, helping soften fine lines over time with a very low risk of irritation.

A lab-made peptide that may help firm skin and soften fine lines, but results are subtle and require consistent use.

A synthetic peptide that may help firm skin and soften fine lines, with good tolerability for most skin types.

Tetrapeptide-3 is a gentle peptide that may help firm skin and reduce under-eye puffiness, but research is still emerging.

Tetrapeptide-36 is a synthetic peptide that may help support skin firmness and reduce fine lines, but research is still emerging and results vary.

Tetrapeptide-38 is a lab-made peptide that signals skin cells to boost collagen production, helping to smooth fine lines and improve firmness with minimal irritation risk.

Tetrapeptide-39 is a lab-made peptide that may help firm skin and reduce fine lines, but research is still early and it's less proven than more common peptides.

A gentle peptide that may help reduce under-eye puffiness and support firmer-looking skin over time.

Tetrapeptide-40 is a lab-made peptide that may help support skin structure and reduce signs of aging, but research is still early.

Tetrapeptide-41 is a lab-made peptide that may help support skin firmness and smoothness, but research is still early and results vary.

Tetrapeptide-44 is a lab-made peptide that may help support collagen and improve skin firmness, but research is still early.

A lab-made peptide fused with a form of vitamin B3, aimed at supporting skin structure, but with limited independent research.

Tetrapeptide-45 is a lab-made peptide that may help support collagen and improve skin firmness, but research is still early and results vary.

Tetrapeptide-46 is a lab-made peptide that may help support collagen and improve skin firmness, but research is still early and results vary.

Tetrapeptide-48 is a lab-made peptide that may help support skin firmness and reduce fine lines, but research is still early and results vary.

Tetrapeptide-49 is a lab-made peptide that may help support skin firmness and reduce fine lines, but research is still early and results vary.

Tetrapeptide-5 is a gentle, lab-made peptide that may help firm skin and reduce under-eye puffiness, but results are subtle and not instant.

Tetrapeptide-51 is a lab-made peptide that may help firm and smooth skin by supporting collagen, but research is still early.

Tetrapeptide-52 is a lab-made peptide that may help support collagen and improve skin firmness, but research is still early.

Tetrapeptide-53 is a lab-made peptide that may help support collagen and firmness, but research is still early and results vary.

Tetrapeptide-54 is a synthetic peptide that may help support collagen and improve skin firmness, but research is still early.

Tetrapeptide-55 is a lab-made peptide that may help support skin firmness and reduce the look of fine lines, but research is still early.

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.

A newer synthetic peptide that may help improve skin firmness and smoothness, but research is still limited.

Tetrapeptide-57 is a lab-made peptide that may help support collagen and improve skin firmness, but research is still emerging.

A synthetic peptide that may help improve skin firmness and reduce wrinkles, but research is still early.

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.

A synthetic peptide that may help firm skin and soften lines, but research is still early and results vary.

Tetrapeptide-59 is a lab-made peptide that may help support collagen production and improve skin firmness, but research is still early.

A synthetic peptide that may help firm skin and soften fine lines, but human studies are still limited.

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.

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.

Tetrapeptide-62 is a lab-made peptide that may help support collagen production and improve skin firmness, but research is still early.

A lab-made peptide duo that may help firm skin and soften lines, but research is still early.

Tetrapeptide-63 is a lab-made peptide that may help support skin structure and reduce signs of aging, but research is still early.

A lab-made peptide that may help improve skin firmness and smooth fine lines, but research is still early.

Tetrapeptide-64 is a lab-made peptide that may help support collagen and firmness, but research is still early and results vary.

Tetrapeptide-65 is a lab-made peptide that may help support collagen and firm skin, but research is still early and results vary.

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.

Tetrapeptide-67 Dimer is a lab-made peptide that may help support collagen and improve skin firmness, but research is still early.

A gentle, research-backed peptide that calms skin inflammation and supports collagen for a smoother, more resilient complexion.