I was wrong about the mascara and 6 months.
Here's what Web MD has to say about it all!
How Long Should You Keep Makeup?
Expiration dates for cosmetics explained.
Q: "I never throw makeup out. How bad is that?"
A: Makeup products don’t carry a 'best by' date. But they do have built-in expiration dates. Here’s a general guide.
Mascara & liquid eyeliner: Every time you put the wand back into the tube, you’re letting in bacteria. These products have the shortest shelf life. Replace every 3 to 4 months.
Liquid foundation: Stored away from heat, foundation can remain stable for up to a year. If you have sensitive or acne-prone skin, don’t dip your finger into the bottle. Apply with a brush or sponge, and don’t double dip.
Lip gloss & lipstick: These are less likely than liquid-based makeup to grow bacteria. It’s safe to hold on to them for at least 6 months and the lipstick for a year.
Powders: Unless you notice a funny smell or the color has turned, you can safely use powder-based products for 18 months to 2 years.
-- Rebecca Tung, MD, division director, Dermatology, Loyola University Health System, Maywood, Ill.
https://www.webmd.com/beauty/features/toss-makeup
Powder shadows, like pressed powders, are less prone to contamination because they, too, lack water (if you wet them, toss after six months). But aging eye shadows have performance issues: They get packed down, making it harder to pick up pigment with your brush, says Bartolucci.
https://www.goodhousekeeping.com/beauty/makeup/tips/a17714/expired-beauty-products/
A Negative Mind ~ Will give you a Negative Life