Most men will notice significant detoriation in their hair by age 25. Aging, sun exposure, stress and more can contribute to thinning hair or hair loss. The good news is, you can do something to fight back. In clinical trials, 80% of men noticed a difference in as little as 7 days, with 100% of men tested citing measurable results in one 45 day cycle.

Health & Fitness Expert

Sales Executive & Father

Mr. Dominguez


I can Officially say that my scalp is back to normal. I've used other products that hurt my scalp, caused so much shedding and redness. Not with this product.


What an amazing product! I started using these products and immediately I could tell the difference. Not only does my hair feel more fresh and healthy, but I can clearly notice the benefits. I was accustomed to using other products that left my hair damaged, and always feeling dirty and oily.


Fantastic product and fantastic company. Have been using Krezinu shampoo, conditioner and serum for a couple of months now. My hair has never felt better - just healthier.


What is scalp/hair aging?

The stats are shocking, most people’s best hair day peaks at 15 years old. More than 90% of all men and women at some point in their lives will suffer unwanted visible signs of aging, weak, thin lifeless looking hair. You do not have to wait until your aging hair/scalp is severe. Krézinu products were formulated to address the signs of aging and to optimize hair thickness, follicular cycle, fiber density and strength, using as natural of ingredients as possible, for all ages and hair types.

Factors that accelerate scalp/hair aging

What is the hair cycle ?

PHASE 1 The Anagen Phase

Anagen is the active phase of a hair follicle’s life. The cells in the root of the hair are dividing rapidly. A new hair is formed and pushes the hair that has stopped growing up and, eventually, off the scalp. During this phase the hair grows about 1 cm every 28 days. Hair on the scalp stays in this phase for two to six years. Having access to blood flow and nourishment is critical for your hair at this stage.

PHASE 2 The Catagen Phase

The catagen phase is a transitional stage and about 3% of all hairs are in this phase at any time. This phase lasts for about two to three weeks. Growth stops and the outer root shrinks and attaches to the root of the hair. This process is normal and gives way to new healthy hair.

PHASE 3 The Telogen Phase

Telogen is the resting phase and usually accounts for 6% to 8% of all hair. This phase lasts for about 100 days for hairs on the scalp. During this phase, the hair follicle is completely at rest.

How does Krézinu improve it?

Before and After