R C.
VERY poor quality control. Most caps leak.
I've bought quite a number of small bottles from them over the years, and most of them leak around the flip-top cap. Recently bought 6 bottles, and only one of them does not leak. There seems to be zero quality control. I can put a cap on really tightly, put it up to my ear, squeeze the bottle, and hear the air hissing as it escapes.



