Review on EIGHT Huge 10mL SenAllis Cosmetics Teeth Whitening Gel Syringes - 35% Gel, Fast & Effective Whitening, Hi-Smile Compatible by Tracy Love

I bought these considering the amount of bleach was pretty good for the price. The problem is that the "syringe" has a large opening so you end up squirting a lot of product, usually in the wrong place, into your retainer or whatever you're using. So while the price may be 50% of a 'normal' smaller syringe, it is actually more expensive because you can't measure what you need to use. The instruction manual for the charging cable width is a joke. No way you'll probably make it 3 times more. So, although cheaper if you use three times more, it really isn't that much. I'm going back to smaller amounts that I can actually measure.