One seemingly magical ingredient is retinol.

But no product is perfect.

For those with already sensitive skin, even a low dose of retinol may cause irritation.

Woman smiling with cream on her cheekbones

Malic acid is a gentle exfoliator thanks to its chemical structure

So what is malic acid?

It can also reduce fine lines, wrinkles, and hyperpigmentation, aka age spots.

Plus, it’s a humectant, so it helps keep skin hydrated and healthy.

Woman applying cleanser in a mirror

Larger molecules equal less skin penetration, which means less chance of irritation.

Though there is a flip side to that size issue.

That’s true as well when it’s compared to other alpha hydroxy acids.

Middle aged woman smiling at a mirror

Scientific research has shown thatmalic acid can be more effective when paired with lactic acid or glycolic acid.