You prob don't have the same skin needs or skin type.
Using a product that is not meant for your skin may cause it to flare up. If you’ve already got a regime that’s working for you, why shake it up and disrupt your skin’s natural defense system?
How likely is it that you'll actually start using your roomie's product on the reg?
There is no point in confusing your skin by using a product randomly, once. Sometimes it takes time for your skin to fully adjust to a product, using an unknown product once may just confuse your skin and cause it to react.
Hello microbes, do you really want your roommate's?
As much as you may know someone, you never know how well they treat their products.
Exercise extra caution if you are sharing something from a jar because you don’t know whose fingers have been in it and if those fingers were clean.
If the product does not require the use of finger dipping application please make sure to wipe the bottle clean. We find a damp, soapy washcloth works well for this.
You likely don’t know how old the products are
Dusty products are a good indicator of how long it may have been sitting on the shelf! It never hurts to double-check the bottle to see if you can find a production code or expiration date.
All in all, be aware of the skincare you share and for your skin's sake, always do your best to tailor products that are suited for your skin and your skin only!