Before starting Retin-A, I used a Brightpad blue/red LED light to help prevent breakouts. Is it safe to continue using it while on Retin-A? Reason I ask is because I know that Retin-A becomes ineffective and also somewhat harmful(?) when exposed to sunlight. I've been googling and searching for a while but I cant seem to find a concrete answer. I'm just assuming that I should be safe and just discontinue using it or use it during the day when I can find a free window of time to do it.
I'm not sure anyone knows or will have a concrete answer for you, but I would suggest stopping the light treatments. Retin-A is a powerful topical gel and it's probably best to let it work alone, just remember it may take awhile to work, and it may even get worse before it gets better!