Different products have different expiry dates. The packaging will usually say how long a product will last after opening.

Never lol, I don’t use make up

It’s six to twelve months after opening (depending on the product), but I admit I keep mine for longer than that.

The expiry time lines are on the product. I wouldn’t recommend keeping/using anything older than 2 years. For mascara I wouldn’t keep it for longer than a year.

I never change my makeup. I think because I don’t wear it that much I feel like it’s such a waste to chuck it.

I would keep it for a year before replacing it.

I only throw it out if it’s dried up or I no longer use it. I’d also throw it out if I have any skin/eye problems or coldsores

Mascara I know should be thrown every 3 months

My makeup runs out before it had a chance to expire.

I’m not sure on guidelines I replace mine every 6 months.

Ummmm I don’t think I should answer that. I have eyeshadow that is well over 10 years old……

I try & change my MU ever few months but have been guilty of keeping them longer. Definitely change mascara more often though.

No idea – never lasts that long!

As a makeup artist I have so much variety I liked to use different brands for different types of people and depending on their skin.

The guidelines are different for each product, and should be printed on each product (usually expressed as a date from when you open it).