I had to mention this product I bought today. I've been using it for 3 years now and since I am in Montreal, I just had to stock up. So I bought 2. The price is $25 CAD each. Available at Uniprix and selected pharmacies.
The Modele Collagen Lip Treatment is an absolute necessity for anyone who wants or needs fuller lips. There are other similar lip treatments, but this one is tried and tested. It is a moisturizing lip balm containing collagen which enhances lip volume. It is clear and can be used under a lipstick or alone as a night treatment , which is how I use it. I don't particularly like the scent of it but who cares?! It gives volume which you can see within a week. Use it every night and let me know!