None

It works. I am a 72-year-old male who definitely sees a huge difference in my hair after three years of consistent use. It's a great product line. Also, when I order via phone, the customer service reps are friendly, know the products well, and patiently answer my questions. They are consummate professionals. Great experience.

Just from looking in the mirror, it looks like I've lost some hair.

Excellent

Timely delivery.

So so

fast shipping, great product!

Love how my air looks and feels! great product! Will be my staple.

It’s been almost a month and I haven’t noticed a difference. I know I suppose to see result in 2 months but after a month nothing is starting to grow thicker

Great product.

Superb product

Just wish the conditioner was bigger/more in it.

L O V E the product. I stopped using it for about a month and could really tell. Purchased it again and my hair is feeling and looking great!!

Shipping took forever, I had to reach out 3 different times and finally got my order.

Did not help at all complete rip off

My hair feels fuller. I am still losing hair--however--I know it will take 2-3 months to change. I have recommend the products to a friend.

Hh

Have never needed to contact customer service. All in all a great produce and experience

Had to buy it twice because the first bottle that came was expired.

Let me know if it goes on sale.