what is so bad about buying an eyelash extension kit on ebay?

i have found some cheap eyelash extension kits on ebay and i am very good at applying my lashes. i was just wondering if it was bad to buy a cheap kit on ebay? if so, how is it bad?

Depends where they are made. Avoid China. If they are made elsewhere, it is okay. Also, get a list of ingredients. You may be allergic and chances are, the more chemicals there are, the more chance of getting an allergic reaction.

Aftercare Essentials Kit for Eyelash Extensions

LUXOR Professional Cutting Collar (Model:6019B) $19.95 The LuxorPro Cutting Collar is the preferred tool used by experienced stylists all over the world. Sturdy and secure, contoured vinyl cutting surface makes hard to achieve precision a snap. Horizontal lines are a great aid for stylist’s precision in cutting. Also works well to protect capes, gowns and clothes….

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REESE ROBERT BEAUTY Professional Deluxe Eyelash Extend Kit $479.00 Reese Robert Deluxe Eyelash Extend Kit has everything needed to create long, flirty and beautiful eyelashes. The lash extensions are semi-permanent and natural looking; they add volume and thickness, providing that wide-eyed look that keeps on working. Lashes look amazing in the morning, after showers, during exercise and all day long. Deluxe Eyelash Extend Kit features fume-free formulation that …