Is Cysteine fungal acne safe?

Yes, Cysteine is generally considered safe for fungal acne-prone skin.

Is Cysteine safe for pregnancy?

Yes, Cysteine is generally considered safe for use during pregnancy.

No, Cysteine is typically derived from animal sources.

Is Cysteine comedogenic?

No, Cysteine has a low comedogenic rating of 0/5 and is unlikely to clog pores.

Cysteine

L-Cysteine

Good

Safe

Pores

0/5

Irritancy

0/5

FA Safe

✅ Yes

Pregnancy

✅ Safe

Vegan

❌ No

Science & Benefits

Cysteine is a sulfur-containing amino acid that is essential for the formation of disulfide bonds in skin proteins (Keratin). It acts as a potent antioxidant by serving as a precursor to Glutathione. As a humectant, it bound water effectively. It is entirely non-comedogenic. Its logic in an acne database lies in its ability to support skin metabolism and detoxify the skin from the oxidative stress caused by inflammatory breakouts.

Safety Alerts

🥩

Non-Vegan: This ingredient is typically derived from animal sources (e.g. beeswax, lanolin, carmine).