Even having just the white cap (actual cap) on causes leakage IME.

I hadn't leakage, but when remove the cap , I see mess of mones of inner side of the cap, and when I turning upside-down the bottle, falls no drop, but globe.
And I figure out hardly whether the drops are 2, 3 or 4.

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I hear old CD case work well

The cardboard tube that the oil bottles from Pureguilt is the best storage for 30ML bottles. It can fit the bulb or euro dropper 30MLs from LAL. The treasure chests from PT are the best for 10ML bottles. There is very little wiggle room in these cases. I wish they would sell them separately.

Look for cases for carrying essential oils

I've had multiple PTreas bottles completely evaporate. The oil stuff doesn't really go anywhere but the alcohol products are not safe.

(02-25-2017 7:48 PM)Jason2001151 Wrote:  Look for cases for carrying essential oils

This is exactly what I did and it works great. I actually got a stand made for Nail Polish from ebay it was like $20 and this is where I keep my bottles at home and when I travel is when I use my EO cases as they hold 30ML bottles just fine I just can`t max out the case or the zipper wont close, so a case that holds 30 5-15ML bottles actually holds like 20 or so 30ML bottles and I use the other slots for my 5ML Togo bottles.