Nice serum - but supplier/company did not fulfill the offer of a free bottle
The serum does not sting or irritate and my lashes do seem healthier.  When delivered there was a coupon offering a free bottle after using at least 2 weeks.  At 3 weeks I e-mailed the company, as instructed on the coupon.  Did not get any response at all.  Was not too happy about the false offer.
Rating: 5 stars