One concern collects several ingredients, and the evidence has not come equally far for each.
Sebum, blocked pores and inflammation, tangled together.
Ingredients: 8
Sebum and dead cells collecting until pores look wider.
Ingredients: 5
Melasma, freckles and marks that stay behind.
Ingredients: 23
Photoageing and loss of elasticity.
What shows up as sagging and slackness.
Water content and barrier function, together.
Ingredients: 20
Skin that reacts easily and stings readily.
Ingredients: 13
Dilated vessels and sensitivity.
Ingredients: 10
Marks left behind by acne and by surgery.
Ingredients: 4
Built-up dead cells and rough skin surface.
Skin that turns shiny quickly because it produces a lot of sebum.
Ingredients: 6
Darkness under the eyes.
Ingredients: 1
The whole list, without paging through it.