There's definitely a lot of CBD choices out there, especially now compared to 5 years ago when we first started. It's quite overwhelming for sure. How long the 300mg tincture will last, depends on how much you'll wind up using per dose. Here's my CBD journey story that should give you a little more perspective to work off of. I started using our stuff in 2019. I mainly just use the tincture to help me sleep more than 4 hours a night. I personally like the tinctures because it allows the flexibility of finding what dose works best, as everyone has different sensitivities to CBD. With the capsules, you're locked into a particular dose amount, but some people like that. I started out by using 5mg. CBD of the tincture before bed, and after a few nights I didn't notice a difference. I then went up to 10mg. and was still on the fence about it. So I tried 15mg. before bed for a few days and started noticing I was sleeping longer, and started having dreams again too! I decided to go up to 20mg. and that's where I've settled at for the last 3 and a half years now. So I personally use the 1200mg strength, and do half of a dropper full to get a 20mg dose. If I were to use the 300mg tincture at a 20mg dose each night, a bottle would last me 15 nights (300 divided by 20 = 15). However, if I were to use 10mg CBD dose a night, then the 300mg tincture would last me 30 nights (300 divided by 10 = 30). We always suggest starting out with a lower dose and then graduate up as needed, since everyone will experience it a little differently sensitivity wise. Plus there's no sense taking more than you need to right. So to sum it up, it'll take a little experimenting in the beginning to find what works for you personally. Since all of our products are Full Spectrum, there is a small amount of THC present. Not enough to get you high (perhaps quite relaxed though), but it could however trigger a positive result on a drug test. So I'm just gonna throw that out there. All of our products are totally gluten free