Different kinds of cosmetic quality inspection:
 

lip balm
Liquid Foundation
Compact Powders
Cosmetic Sets
Eyeliners
Eyeshadows
Eye Serum
Eye Mask
Lip Gloss
Lipsticks
Mascara
Nailpolish
Nailpolish Removers
Pearlescing agent
Emulsifier
Paraffin Oil
Greases
Antiseptics
Surfactant
Cationic conditioners
Silicone Fluids
Humectant
Hair Shampoo
Hair Styling Gel
Shampoo Conditioner
Neck Mask
Neck Firming Cream
Shower Gel
Body spray
SPA Aromatherapy Oil
Bleaching Lotion
Bubble Bath
Hand and Body Lotion
Depilatory Wax
Sunscreen /Sunblock
face mask
Hotel Amenities
Hotel Bottle Cosmetic
Hotel Tube Cosmetic
 

Some common factors to check for cosmetic quality control:

Material
Visual inspection
Specification&Size
Packaging Materials
Odor
Stability Testing
Basic function  check
Some other tests by 3rd party lab.