I am a huge fan of BR Lotion P50 and have used almost all of the various strengths in the line. My absolute favorite right now is Lotion P50 V 1970. I am 50 years old and this one helps with toning and firming and is not too strong. I suffer from rosacea outbursts from time to time and mostly when I am NOT using P50. Thus, I have vowed to never be without it again. I prefer the 1970 formulations because it adds a little special tingle to the skin and I feel like my skin is getting a little special workout from it. The key is to use this product religiously. You might have a little purging or experience a little red face the first week of using but then your skin adjusts as the ph balance is balanced. If you are just diving into the BR line- I recommend buying one of the beautiful milky cleansers as well- Lait VIP 02 is my favorite, followed by Lotion P50, and Masque Vernix (used as night cream) will be a great introduction to the line.