Do lash growth products work?

Revitalash

Cost: $150

What they say:RevitaLash Eyelash Conditioner is a non-prescription Latisse alternative originally created by a doctor who wanted to help his wife regrow eyelashes and eyebrows after receiving chemotherapy. The product focuses on promoting healthy, natural lashes that last.

What users say: We consulted Henna Singh, editor of CanadianBeauty.com, who tried Revitalash. She said she was skeptical, but like a true beauty maven, tried it out for the full six weeks. “It really does work for the time that you use it, and I noticed that within weeks of stopping, my lashes were sparse again. I really liked this serum, and I’ve gotten into the habit of using it daily, but it did take about a month of continuous use to notice a difference in my lashes.”

Next: But is it really necessary?