Four things come to mind immediately:
Nail polish: Sally Hansen Salon Effects in "Barracuda" -streaky, bubbly, horrid nightmare...worst nail polish I've ever used! I have others from that line that are incredible...but this one was awful. Maybe I got a dud?!
Lip Gloss: NARS Larger Than Life lip gloss in "Palace Vendome" This is by far the WORST lip gloss I've ever used. It's going back to Sephora! The color is pretty, but the applicator is like trying to apply lip gloss with a toothpick...awful! It's also a very streaky gloss. For the the price I paid, I expect that lip gloss to get up and cook me breakfast in the morning, not take an hour to apply, and look streaky! Sephora has a great return policy, so this one is going back to the store the next time I visit. (When I tried it on in the store, I used one of their disposable doe-foot applicators, so I had no idea the applicator tip that came with the gloss was like a toothpick! I'll never buy from that line again, but I do LOVE their regular lip gloss in "Wonder".
Hair Care: Organix Renewing Moroccan Argan Oil Treatment. I followed the directions on the tub exactly, and this stuff singed my scalp horribly! I had such a horrid reaction to it that I had to go see my dermatologist as an emergency! I called the company and let them know what happened. (I've used other products from the Organix line in the past and have never had an issue. I've used a lot of things from the Coconut Milk line, Pomegranate & Green Tea Shampoo, even the Vanilla Silk shampoo/conditioner: None of those products irritated me or broke me out, only that one.)
Foundation: Revlon Color Stay Whipped Creme Foundation. I've used there regular Revlon Color Stay foundation in the past, so I really wanted to try this new one out. I used it for several weeks and really enjoyed the coverage and consistency. Unfortunately, I started to notice painful cystic acne bumps start to pop up all over my face. (I'm fortunate in that my skin NEVER breaks out, ever....so I knew without a doubt that it was the foundation.) That royally stinks because I loved the foundation, but I will not continue to use a product that breaks me out, so yesterday I got matched with Makeup Forever's Matte Velvet+ and like that so far! Hopefully it will work out!