Does Alpecin Shampoo Work? Side Effects And Benefits

Medically Reviewed by Dr. Madhuri Agarwal, MBBS, MD
By Jyotsana Rao

One of the many caffeine-based hair products garnering popularity fast is the Alpecin Shampoo. This brand claims to not only strengthen hair strands but also increase volume and make your tresses shiny. Most caffeine-based shampoos also claim to stimulate hair growth and reduce hair fall. But we are here to separate the truth from fiction. Read on to understand the benefits of using Alpecin and also its side effects.

Alpecin For Hair: How It Works

The main ingredient of Alpecin shampoo is caffeine. Studies have found that caffeine might stimulate hair follicles and promote hair growth in people with androgenic alopecia. It can penetrate the hair follicles faster when applied topically via shampoos (1), (2). This explains why Alpecin may work for hair growth.

Scalp health is also a crucial factor in promoting healthy hair growth. Alpecin also addresses scalp issues like dandruff (Alpecin Double Effect Shampoo). It contains piroctone olamine, an antifungal ingredient that controls the proliferation of Malassezia globosa, a yeast-like fungus that causes dandruff (3).

If you have been thinking of using Alpecin for your hair fall issues, take a look at the benefits it may offer.

Benefits Of Alpecin Caffeine Shampoo

1. May Promote Hair Growth

The active ingredient in Alpecin shampoo is caffeine that may stimulate the hair follicles and promote hair growth. However, there is not enough evidence available to prove that caffeine promotes hair growth.

2. Strengthens The Roots

The caffeine in Alpecin helps strengthen the roots and reduce hair breakage.

3. Minimizes Scalp Issues

Dandruff can affect the scalp’s health and weaken the hair roots. Scratching can also injure the scalp and affect the hair roots. Alpecin shampoo can resolve scalp issues like dandruff, itchiness, and irritation.

While Alpecin is safe to use, it may cause several side effects. Let’s take a look at them.

Side Effects Of Alpecin

1. Hair Thinning And Hair Fall

While many users have claimed to reap benefits from Alpecin, others reportedly experienced hair fall. The shampoo contains synthetic preservatives like methylparaben, propylparaben, and phenoxyethanol, which may cause scalp irritation and affect its overall health. Moreover, it may cause allergic reactions like itching, redness, and burning sensation if you are allergic to caffeine.

2. Discoloration

Long-term use of caffeine shampoo may fade the hair color and cause browning. If you have color-treated hair, you may avoid caffeine shampoo.

3. Reduced Efficacy

Anecdotal evidence suggests that long-term use of caffeine shampoo may eventually produce less effective results. If you have been using caffeine shampoo for hair growth for a long time, it may stop showing results after a while.

If you want to give Alpecin a try, here is how you can use it.

How To Use Alpecin

  1. Apply the shampoo to wet hair.
  2. Gently massage for 2-3 minutes in a circular motion.
  3. Leave it on for another 2-3 minutes.
  4. Wash off with regular water.

Alpecin shampoo works by stimulating the hair follicles, thanks to its caffeine content. This shampoo also improves scalp health by acting against the dandruff-causing Malassezia fungus and reduces itching and irritation. However, it may cause certain side effects, like hair thinning and hair fall, due to the presence of harmful chemicals. Moreover, people allergic to caffeine may experience itching and a burning sensation, while frequent use of caffeine-based shampoos can discolor your hair. Hair loss can also be a sign of a genetic issue or an underlying health condition, so consult a doctor if the problem persists.

Frequently Asked Questions

Should I use Alpecin every day?

Yes. Alpecin contains caffeine that is formulated to be effective for 24 hours at a time. As a result, it is advisable to apply it on a regular basis to maintain its efficacy.

How long does Alpecin take to work?

Anecdotal evidence suggests that Alpecin takes about 3-4 months to show visible results.

Can I leave Alpecin overnight?

No, leaving Alpecin on for more than 2 minutes may lead to temporary scalp redness in certain individuals.

Is Alpecin shampoo sulfate-free?

No. Alpecin C1 Caffeine Shampoo contains sodium laureth sulfate, a sulfate compound that acts as a surfactant/​cleansing and an emulsifying agent

Key Takeaways

  • Alpecin shampoo contains caffeine, which is said to stimulate hair growth.
  • It also uses piroctone olamine to control dandruff.
  • However, in certain cases, it may cause issues like hair thinning as well.
  • This shampoo can only be used as a short-term treatment for hair loss.


Articles on StyleCraze are backed by verified information from peer-reviewed and academic research papers, reputed organizations, research institutions, and medical associations to ensure accuracy and relevance. Check out our editorial policy for further details.

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Jyotsana Rao is an engineering graduate from NIT, Nagpur, who discovered her love for writing during her undergraduate days. She... more

Dr. Madhuri Agarwal

Dr. Madhuri Agarwal is an aesthetic dermatologist with over 16 years of experience and the Medical Director & CEO of... more