Corn starch is often used as a soothing, mattifying agent in DIY face masks. It can temporarily smooth or mattify the skin but does not penetrate deeply enough to affect wrinkles in a lasting way.
3. Wrinkles
Wrinkles are caused by a combination of aging, sun exposure, genetics, and lifestyle factors. Effective wrinkle reduction usually involves:
Retinoids (vitamin A derivatives)
Peptides
Hyaluronic acid
Sunscreen (for prevention)
In-office treatments (e.g. microneedling, laser, Botox)
So, yeast and corn starch might temporarily improve skin texture, but they do not permanently remove wrinkles, regardless of age.
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