Yes. Oliver, category performance on e-com really mirrors the total company performance that we highlighted in the script. So strength across skincare, haircare, bath, fragrance, exceptionally strong and continued challenges although some bright spots in makeup. So nothing different about our e-commerce business versus our store from a category standpoint with real strength and growth coming outside of the makeup category. So we're pleased with that.
As it relates to the -- our loyalty program, I'll just start with saying we are really -- remain incredibly proud of what we believe is one of the best loyalty programs in all of retail. And even with some of the challenges we faced this year, we know our guests continue to love the program. They're highly engaged in that program. Our brand partners continue to find a lot of value through the access and the insights that they get by engaging in that program. Our elite guests, our diamond and platinum guests are still highly engaged. It is working at a very high level, and we're really glad that we -- we've always been glad to have it, and we certainly have been happy to have that as part of our arsenal this year as we face this unprecedented times.
But yes, we did see a decline this year, primarily due to store closures. That hurts our new member conversion, and it also impacts retention because, as you know, while our e-commerce business is growing, and we have a significant increase in penetration of our member base at our e-commerce, it's still a majority store-based user loyalty program. And some of those guests, particularly the least engaged, the non-elite guests, we have seen a bit of a hit on retention with those least tenured guests.
Importantly, as I think Mary mentioned in the script, our retention with our most tenured guests, the platinum and diamond, remains very strong, and we're seeing a lot of strong performance in that. So with nearly 32 million members, we're -- we feel like it's still very strong, and we're focused on reactivating guests, continuing to drive strong engagement with our engaged guests and those elite guests. But as a reminder, we do calculate loyalty -- the number of our loyalty program over rolling 12 months. And so as each month goes by, we're still lapping a pre-COVID period through this -- through the next several months. So we're working hard to reengage our guests, but we'll continue to be lapping a period where we weren't facing the challenges, particularly in our store fleet. So we're anticipating some challenges with our less tenured guests for a little while but focused on retaining them and seeing strength as we emerge out of this in 2021.