Do pores open and close with water temperature changes? (from Beautiful With Brains)

No.

Does lipstick expose you to dangerous levels of lead? (From The Beauty Brains)

Short answer: No. You'd have to eat a shitload of lipstick every fucking day to get any kind of toxicity. You already always have some lead in your system, anyway, fyi. More here.

5 Beauty Lies Most of Us Believe (And the Truth Behind the Lies) (PaulaBegoun, The Cosmetics Cop)

No bullshit. The lies are below; click through to read the explanations.

Lie #1: Dry skin? Drink more water!

Lie #2: You can repair damaged hair.

Lie #3: There’s a product that can get rid of cellulite.

Lie #4: One special ingredient (like vitamin C or peptides) is all aging skin needs.

Lie #5: Parabens are bad for you, so avoid products that contain them.

5 Beauty Lies Most of Us Believe (And the Truth Behind the Lies) (Paula Begoun, The Cosmetics Cop)