Quality sleep is one of the most important factors in pursuing and achieving your goals, whether that be recovery, fat loss, or both! The problem is that it's commonly overlooked. Just one night of poor sleep has been shown to cause an increase in the appetite-stimulating hormone ghrelin. It can also elevate cortisol levels and decrease g
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Easy Daily Addition
Core-21 has been an easy addition to my daily routine. I like that it keeps things simple without me having to take a bunch of different products throughout the day. Convenient, easy to stay consistent with, and fits perfectly into my supplement routine. Definitely one I’ll keep using.
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Miguel · September 28, 2026
Easy Addition to My Nighttime Routine
I’ve been using Core-21 as part of my nighttime routine, and I really like how easy it is to incorporate before bed. I’ve been trying to make sleep and recovery more of a priority, so I appreciate having something that is designed to support relaxation, healthy cortisol levels, and overall nighttime recovery.
What I like most is that it fits easily into my routine without making things complicated. For me, Core-21 has been a simple addition that helps me stay consistent with focusing on better rest and recovery.
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Susan · September 21, 2026
Great Sleep Product
I've tried a few different magnesium type sleep products from other brands and this is quite noticeably the best one I've had. I will continue to purchase!