Do I need to combine the Caffeine DMG Shampoo with the Caffeine DMG Serum?

You can easily combine the Caffeine DMG Shampoo and the Caffeine DMG Serum, but it is not necessary to use both products simultaneously. What is crucial is that your hair and scalp receive a daily dose of Caffeine DMG. We recommend using the shampoo on days when you wash your hair and the serum on days without hair washing.

Does hair length affect the effectiveness of the shampoo?

No, the effectiveness of Alpecin Caffeine DMG Shampoo is primarily focused on the hair roots and is independent of hair length. Depending on the hair length, additional hair care should be applied.

How were the studies on Caffeine DMG conducted?

As a scientifically oriented company, Dr. Wolff places the highest value on sound research and evidence-based statements. We are currently a pioneer in the field of topical application of N,N-dimethylglycine (DMG). To generate valid and objective data, we rely on a high-quality study design. Our investigations – for example into the Alpecin Caffeine-DMG products – were therefore conducted in a placebo-controlled, randomised, and double-blind manner. A brief explanation of these terms: Placebo-controlled: One group receives the active ingredient formulation, another receives a placebo. This allows the actual effectiveness to be assessed objectively. Randomised: Allocation to the groups is made at random in order to avoid systematic bias. Double-blind: Neither the study participants nor the technical staff know who is receiving which treatment, ensuring unbiased results.

General guidelines for customer reviews Every customer review submitted is carefully checked before publication to ensure that it does not contain any offensive or inappropriate content. Calculation of the overall rating The overall rating is based on all submitted and published reviews, including verified reviews, product tester reviews and unverified reviews. These reviews are used to calculate the average score, which is displayed as a value and star rating. Free product test with competition Some reviews are labelled as being from product testers. These testers were provided with the product free of charge and also had the opportunity to take part in a competition. All reviews from product testers are labelled accordingly.

Caffeine DMG Shampoo | Anti-hair loss shampoo

Name: Caffeine DMG Shampoo
Brand: Alpecin
SKU: 22365
Price: 53.99 EUR
Availability: InStock
Rating: 4.06 (904 reviews)

Microscopic image of the tiniest blood vessels surrounding the left part of a hair root, symbolising the effect of DMG on the micro-circulation of the scalp and its impact against hereditary hair loss in men.

Mode of action: DMG promotes the micro-blood-circulation of the scalp

Hair loss* is effectively reduced.

Microscopic image of the tiniest blood vessels surrounding the right part of a hair root, symbolising the effect of DMG on the micro-circulation of the scalp and its impact against hereditary hair loss in men.

Micro-blood-circulation: The foundation for healthy hair growth

In areas affected by hair loss, this is reduced to below 40 %.

This is where DMG comes in:
Its mode of action, comparable to Minoxidil, ensures improved micro-blood-circulation and the hair roots are once again supplied with nutrients.

Microscopic image of a hair root in brown and blue, intended to symbolise the effect of the Alpecin Caffeine Complex.

Additionally, caffeine stimulates the hair root

Caffeine has been known for over 20 years for its growth-stimulating effect on hair roots. It inhibits the breakdown of the intracellular messenger cAMP. As a result, more energy is available to the cells and cell growth is stimulated.

Caffeine is thus the most researched active ingredient of plant origin against hereditary hair loss.

Part two of a tripartite depiction showing a microscopic view of a hair root.

Caffeine + DMG: Even more effective when combined

Individually, caffeine and DMG are already highly potent active ingredients. In Alpecin's unique, patented active complex, they are now even more powerful.

The result: Hereditary hair loss is now effectively reduced and hair growth** can be increased.

Micro-Circulation of the Scalp

A circular heatmap of a head, predominantly in blue with a small central yellow and red area, shows intensity variations of micro-circulation against a dark blue background.

BEFORE application:

A circular heatmap of a head with vibrant red, yellow, and blue tones shows intensity variations of micro-circulation against a dark blue background.

AFTER application:

Measurement of micro-circulation before and after using Alpecin Caffeine DMG Shampoo (Vertical head shot with a special laser camera for measuring blood flow).

Bird's-eye view of a man's head with a grid displayed on it, illustrating the point that a large portion of the hair was examined in the study participants.

Measurement method: First-time evaluation of more than 10,000 individual hairs

Focus on a screen showing a close-up of hair to highlight that Dr. Wolff, together with the Fraunhofer Institute, has developed a new method to analyse hereditary hair loss in men.

In collaboration with the Fraunhofer Institute, Dr. Wolff Research has now taken a systemic approach to hair loss* and conducted a comprehensive analysis of the human scalp.

Whereas previous studies examined areas with only around 300 hairs, our new method, which evaluates more than 10,000 hairs per head, provides precise results:

The combination of caffeine and DMG can effectively reduce hair loss*. And in some cases, new hair growth** was even observed.

Clinical Study: Reduction in hair loss* demonstrated in 92% of participants

The graph shows the results of the hair pull test over time, comparing "Caffeine + DMG" with "Placebo." The test group decreases, while the control group increases. The X-axis marks the days, and the Y-axis shows the mean values with confidence intervals.

Double-blind, randomised, and placebo-controlled study:

The clinical study was conducted on 154 men with hereditary hair loss. These men used either the new Caffeine DMG Shampoo (verum) or a placebo shampoo over a period of 6 months.

Hair growth** can be increased

Three close-up shots of skin show hair growth at intervals: "Day 0," "Day 84," and "Day 168." Each image displays different hair density on a similar skin surface. — Phototrichogram: Clinical tests conducted at Eurofins Cosmetics & Personal Care Italy.

The analysis of the study subgroup showed a significant increase in hair growth**:

Read the full study

Effectiveness depends on individual metabolism. 74% of study participants noticed thicker, denser, and fuller-looking hair after 6 months of use.

ESzW

Dr. Erik Schulze zur Wiesche

Head of Research & Development

Application: This is the only way to achieve the best result

Apply daily
Leave on for 2 minutes
Use continuously

Tip for your daily dose of Caffeine DMG
Use the Caffeine DMG Serum on no-wash days!

Also available as a serum

New: Caffeine DMG Serum

Highly effective serum with Caffeine + DMG (Dimethylglycine)

Effectively reduces hereditary hair loss
Can boost hair growth**
Leave-In product
Important: Massage in and do not rinse out

To the serum

Or as a bundle

Our bundle consists of 2x shampoo and 1x serum and is the perfect combination to ensure your daily dose of Caffeine DMG.

Discover the bundle

Video: The Alpecin Story

The OMR Original takes a look behind the scenes at Alpecin and shows how a chance discovery in the lab, the courage to make radical decisions, ambitious goals, and unconventional marketing paved the way for Alpecin to become the leading – and often copied – manufacturer of products against hair loss*.

View full story

FAQ: Answers to your questions

Already after 3 months of regular use, clinical studies have shown a significant reduction in hereditary hair loss.

For a successful anti-hair loss routine, daily and consistent use is highly recommended. Please note the required exposure time of 2 minutes.

Unlike medicinal products, no undesirable side effects are to be expected with regular use. None were found in studies or reported by consumers so far.

General guidelines for customer reviews
Every customer review submitted is carefully checked before publication to ensure that it does not contain any offensive or inappropriate content.
Calculation of the overall rating
The overall rating is based on all submitted and published reviews, including verified reviews, product tester reviews and unverified reviews. These reviews are used to calculate the average score, which is displayed as a value and star rating.
Free product test with competition
Some reviews are labelled as being from product testers. These testers were provided with the product free of charge and also had the opportunity to take part in a competition. All reviews from product testers are labelled accordingly.