The thing you need to keep in mind is that for AHA's to be effective there needs to be certain pH level. We know our moisturizer is compatible, however we can't be sure that every other moisturizer is going to be at a pH to allow the AHA to still work.
The first few months can feel like a roller coaster ride with ups and downs. It isn't unusual to still see some breakouts but if you are using the products as directed, as time goes on the breakouts should become smaller and heal quicker than before. Usually by the third month most cases of acne are under control.
Consider mixing the AHA and moisturizer together and use them that way at night. You can also add jojoba oil to the mix as well. In my experience, AHA does not help with overall skin redness. It may help red marks fade a bit quicker, but overall redness-no.
Our manufacturer has assured us that transient temperature extremes should not harm the products. They do often get frozen during shipping and delivery. Just let them thaw at room temperature, give a little shake and they should be good to go. You wouldn't want to store them for weeks at a time at extreme temperatures though.
In the beginning, bp may cause some irritation and sensitization and just about any moisturizer may sting a bit. You may have better luck if you use our products, but if that isn't possible, try increasing the waiting time between steps and be sure you eased into the bp by just using a tiny amount once daily for the first week. Jumping in with too much too soon can leave the skin feeling quite irritated and sensitive to just about everything.
Dan has said for years that he feels that daily shaving tends to work best for acne prone skin and you need to be sure you are shaving with the hair and not against it. If the acne flared up when you started growing your beard, this is probably because as you said you couldn't apply bp through the beard. Now that you have been shaving again, make sure of your technique. Watch Dan's videos. http://www.acne.org/faq.html#shave and http://www.acne.org/...to-shaving.html
Since your beard area does better when you shave regularly, you may just have to continue with shaving. Get back strictly on the regimen and the breakouts there should get back under control.