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The Science Behind Hair Growth: How to Stimulate Hair Regrowth

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Do you have a receding hairline, thinning hair, or bald patches? If so, you're not alone. Millions of people around the world suffer from hair loss.

There are many causes of hair loss, including genetics, stress, and poor nutrition. But don't worry – there are also many treatments for hair loss. In this blog post, we will discuss the science behind hair growth and how to stimulate regrowth!

The Science Behind Hair Growth

Hair Follicles

Hair follicles are small sacs in the skin - each contains a single strand of hair. The hair follicle is responsible for growing and maintaining the hair shaft. The cells at the base of the follicle divide to produce new cells, which push the older cells up through the follicle. This process is known as cell turnover. As we age, the cell turnover process slows down and the hair follicles produce thinner, shorter hairs. This is why people often experience hair loss as they get older.

There are many different factors that can affect the health of hair follicles, including hormones, stress, and nutrition. When hair follicles are healthy, they can produce strong, thick hairs. But when hair follicles are damaged, they may produce thinner, weaker hairs, or no hair at all.

Hair Growth Cycle

The hair growth cycle has three phases: the anagen phase, the catagen phase, and the telogen phase.

1. The Anagen Phase

The anagen phase is the active growth phase of the hair follicle. This phase can last for several years, during which time the hair follicle will produce a new hair shaft.

2. The Catagen Phase

The catagen phase is the transitional phase of the hair follicle. During this phase, the hair follicle will shrink and the hair shaft will detach from the follicle.

3. The Telogen Phase

The telogen phase is the resting phase of the hair follicle. During this phase, the hair follicle will not produce a new hair shaft. The telogen phase can last for several months.

After the telogen phase, the hair follicle will enter the anagen phase again and a new hair shaft will be produced. This cycle will repeat itself for the rest of our lives!

What Causes Hair Loss?

There are many different causes and signs of hair loss, including genetics, stress, and poor nutrition.


Hair loss can be hereditary. If you have family members who have experienced hair loss, you may be more likely to experience hair loss yourself.


Stress can cause the body to produce higher levels of the hormone cortisol. High levels of cortisol can damage hair follicles and lead to hair loss.

Poor Nutrition

Poor nutrition can also cause hair loss. A lack of essential nutrients, such as protein, iron, and zinc, can weaken the hair follicles and lead to hair loss.

How To Stimulate Hair Regrowth

There are many different treatments for hair loss, but not all of them are effective. Some common treatments include minoxidil (Rogaine), finasteride (Propecia), and hair transplants.


Minoxidil is a topical solution that is applied to the scalp. It works by increasing blood flow to the hair follicles, which stimulates hair growth. Minoxidil is available over the counter and does not require a prescription.


Finasteride is a pill that is taken orally. It works by blocking the hormone that causes hair loss. Finasteride is available by prescription only. You can buy Finasteride for hair loss here at Express Pharmacy.

Hair Transplants

Hair transplants are a surgical procedure in which healthy hair follicles are transplanted from one area of the scalp to another. This can help to restore hair growth in areas where the follicles are damaged or inactive.

In Conclusion

There is no one-size-fits-all solution for hair loss. The best treatment depends on the cause of hair loss and the individual's preferences. Talk to your doctor to find out which treatment is right for you.