Overall Success Rate:
Product Rating: 2nd
Last Updated: December 28, 2017

This physician-developed eyelash conditioner, created by Dr. Susan Lin, is one among a family of skin care products. But MD Lash Factor isn’t your middle child that sits in the corner and waiting to belong somewhere – it shines on its own, with its inviting promise of thicker, longer, and generally fuller eyelashes taking the spotlight.

Use MD Lash Factor for four weeks and see up to 40 percent increase in lash length, so goes its website copy. MD Lash Factor credits this to its roster of nourishing ingredients, including peptides that protect against UV damage and breakage, and its cytokine complex obtained from milk. While it openly admits that it doesn’t promote eyelash growth, MD Lash Factor intends to stay in the game as a once-a-day lash conditioner.


  • Paraben-free
  • Boasts of a doctor’s backing and expertise


  • Contains prostaglandins
  • Recalled in Australia due to its prostaglandin content
  • Needs to beef up its testimonials and clinical study pages

Overall Rating

You may be asking: prostaglandins? What’s all the fuzz about? The Australian recall of MD Lash Factor, perhaps the biggest blow to its reputation and product ego, revolves around prostaglandins, which affect a wide range of bodily functions (dilation/constriction of blood vessels, for instance). These hormone-like substances are prescription-based and are thus intended only under medical supervision. We are of the belief that if you have a tiny bit of safety concern, any level of effectiveness fades. There are also other competitive products out there that sell more reasonably, even addressing the subject of eyelash growth and loss that are both “neglected” in MD Lash Factor’s agenda.

How to Apply

  1. Cleanse your face, and make sure that makeup is completely removed.
  2. Apply product as you would any liquid eyeliner.
  3. Use only once daily.

Cost and Size

0.2 fl oz (5.91 ml) at $140


Water, Hydrolyzed Glycosaminoglycans, Phenoxyethanol, Triethnolamine, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, C12-15 Alkyl Benzoate, Caprylyl Glycol, Panthenol, Sodium Chloride, Biotin, Sodium Lactate, Sodium PCA, Alcohol, Sorbitol, 7-[3,5-dihydroxy-2-(3-hydroxy-4-phenoxy-but-1-enyl)-cyclopentyl]-hept-5-enoic Acid Ethylamide, Proline, Sodium Phosphate

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MD LASH FACTOR Reviewed by Top Beauty Secrets. Rating: 87%