I visited the L'Oreal Warehouse Sale in their new location during their September 2017 Private Sale. I was fortunate enough to receive an invite for the Corporate Private Sale Date where it was closed off to other invitees and I received an additional 20% off .
I came here with my sister around 3:30pm on a weekday and parking was pretty empty, lots of spots available in the parking lot, and there was no line ups to get in. The only thing was that, the map they printed out was inaccurate so the security had to tell us to drive around and park in another area, which was a bit difficult to find.
I find that the discounts on all the items are very good, usually at least around 30%, and depending on the product, could be even more deeply discounted. But it really depends on what you're looking for. Its definitely a great opportunity to try new products you were hesitant about trying before simply because of their high price.
Keep in mind that this is a warehouse sale, so they are trying to just get rid of products/clearing stock. For example, they had a lot of mascaras. but 90% of them were not waterproof. So don't come here expecting them to have every single product under the L'Oreal brands.
My favourite item from this warehouse sale are the Essie nail polishes. They were on sale for $2/bottle this time. There's also a decent selections of colours to choose from.
Definitely bring your own reusable bags!