This is a very effective and high quality melatonin. It actually works for me whereas tablets don't. My only concern is that when I pinch the top of the dropper to get a full dose, the liquid doesn't always look like it's reaching the dose line on the glass dropper thingy, as if it didn't suck up enough metalonin when I pinched the rubbery cap thing...so sometimes, just to be safe, I squirt a second dose in my mouth since the first application doesn't always seem to be a full dose. But the melatonin itself is awesome.
I love melatonin, I have hormonal issues that have made my sleep terrible. I usually love Source Natural products and it definitely helped with sleep but this liquid gave me a sore stomach, which is a shame because I think this form is more bioavailable. It’s sickly sweet and kind of thick. I think I’ll have to stick to melatonin tablets.