I received a sample size of this product so I was only able to use it for a few nights. It smells nice and leaves your face feeling nicely moisturized. It didn't leave any sticky residue behind which was nice. As for the effectiveness regarding firming. I'm not sure if I noticed my skin being any firmer, but that could've been due to me only having a sample. Overall I liked this product and I would use it again in the future.

I was overjoyed with this product. It's was all I expected and more. I looked and felt absolutely stunning each day I used this. I don't use everyday but I DO always have a tube. Great Product!!

This serum is great. I absolutely love that it comes with a roller. The roller have cooling effect. It is very soothing your skin which makes applying makeup easier. It is easy to use and can never go wrong with philosophy products. I definitely recommend it. Philosophy Ultimate Miracle Worker Fix Retinol Serum Facial Roller

Purchased this for my mom and she was amazed with it!

I purchased this after reading some reviews. I enjoy it, but I believe that it is a long term results kind of product. It feels good and the roller has a cooling affect that I enjoy. I use it a couple of times a week and it doesn't have any negative affect, but I don't know that I would purchase it again for the price. It does leave my skin feeling good after application.

This serum is great! I absolutely love that it comes with a roller. The roller has a cooling effect and when rolling it in an upwards motion it really feels like it's working into my skin well. It has given my face a nice tightness and lift to it after just a few weeks. Definitely love hoe convenient this product is and can never go wrong with Philosophy products.

Very soothing on my skin which makes applying makeup easier. It's also easy to use.

I'm very impressed with this product so far, I use it every night after cleansing my face with Purity Made Simple. After only three uses, my skin is SO smooth and soft! I look forward to seeing benefits with prolonged use, it van only get better. If you are uncertain to try this product, I say go for it, you will love it.

Helps lift and firm skin using retinol and Philosophy's "lift-fix" complex. The steel applicator was cooling and a nice new way to applying serum. It contains silicone which is usually a con for me. It took using 2 of these for me to finally see some type of results. But it helped lift my skin under my skin and fine lines around my mouth

I used this light, fresh serum in the morning after a shower on my face and neck as a moisturizer without makeup- because I'm in a mask all day in the laboratory! Hard to tell about results after a single use and without the roller. I guess I'll have to buy the full size to see!