Why shouldn't you buy cosmetics in a jar?

I heard this is true but I don't know why this is the case.Why shouldn't you buy cosmetics in a jar?
I'm assuming you mean things like cream products in a screw-top jar. They're fine to buy, yo just have to be careful about sanitation and depending on what it is, drying out. Always use a clean brush when using prodcts out of a jar, unlike a pump bottle, you touch more product than you use when you reach in to get it out, this leave bacteria in the jar which can grow and be bad for you- it can also change the product. Some products ';oxidize'; when they come in contact with oil, changing their color and texture.





Also, if you use a product in a jar opening it everyday exposes the product to air, which can dry it out. If it's a prodct you use often, I reccomend every couple weeks taking a tiny bit and putting it in a small sample jar and using that fo reveryday- that way if it dries out you only waste a little, not the whole thing, and the big jar doesn't dry out as fast because you only open it every couple weeks, not everyday.Why shouldn't you buy cosmetics in a jar?
this is not true.


Mostly,all my cosmetics are in little pots and jars!


You just have to be carful with putting your fingers


in them. Make sure that you wash your hands before


and after using them. Also,when using brushes


in these jars,never forget to clean your brushes


once to twice a week. NEVER forget that.


You face isn't exactly all sanitized when you use


your makeup throughout the day so always


clean your brushes. And sponge/pads/applicators(made of cotton) should be replaced every week or if not,thorougly sanitized.


**
not true. keeping product clean and bacteria free means not putting fingers in jar. find something you can use for a spatula to take out the required amount. screw top on firmly.


coffee stir sticks may work but you'd have to use quite a few for one jar. plastic better ans washable.
My expert opinion is that because with jars usually there will be a lot of bacteria build up and things like that.