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Alpecin Caffeine Shampoo C1 - 250ml

Alpecin Caffeine Shampoo C1 - 250ml

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  • ✔️ Contains caffeine to help reduce hereditary male hair loss
  • ✔️ Targets hair follicles directly through scalp absorption
  • ✔️ Requires just two minutes contact time per daily wash
  • ✔️ Suitable for adult men with androgenetic alopecia
  • ✔️ Supports hair follicle activity during the natural growth cycle

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Is Alpecin Caffeine Shampoo Right for Your Hair Loss?

 

Hair loss affects millions of men in the UK, and finding something that actually fits into your daily routine — without a prescription or a complicated regime — is often the first step. Alpecin caffeine shampoo C1 is one of the most widely recognised over-the-counter options for men dealing with hereditary hair thinning, also known as androgenetic alopecia. At just £6.29 for a 250ml bottle, it sits comfortably within everyday budgets while offering a science-backed approach to scalp care. If you're exploring your options, you'll find a broader range of products in our hair care collection.

Androgenetic alopecia is the most common cause of hair loss in men, affecting roughly half of all men by the age of 50, according to the NHS. It's driven largely by the hormone dihydrotestosterone (DHT), which shortens the growth phase of hair follicles over time. Alpecin C1 was developed specifically with this mechanism in mind, using caffeine as its key active ingredient to support follicle activity at the scalp level.

 

How Does Alpecin Caffeine Shampoo C1 Work on the Scalp?

 

The science behind this shampoo centres on caffeine's ability to penetrate the scalp and interact directly with hair follicles. Research published in peer-reviewed literature has suggested that caffeine may help to counteract the suppressive effect of testosterone on hair follicle growth — essentially giving follicles a better environment to remain in their active growth phase (anagen) for longer.

  • Caffeine is absorbed through the scalp within minutes of application
  • It may inhibit the enzyme phosphodiesterase, which plays a role in follicle suppression
  • This can help extend the anagen (growth) phase of the hair cycle
  • The shampoo must remain on the scalp for at least two minutes to allow adequate absorption

It's worth noting that this is a topical product — the caffeine is applied directly to the scalp, not ingested. So the amount reaching your follicles is targeted and localised, rather than systemic.

 

Who Should Consider Using Alpecin C1 Shampoo?

 

This shampoo is designed primarily for adult men who are experiencing early to moderate hereditary hair loss. It's not a treatment for all types of alopecia — conditions like alopecia areata or hair loss caused by nutritional deficiencies, medication, or illness would need a different approach entirely. If you're unsure what's causing your hair loss, it's always worth speaking to your GP first.

Alpecin C1 is likely to suit you if:

  • You are an adult male experiencing gradual thinning at the crown or temples
  • You have a family history of male pattern baldness
  • You want a simple, daily-use product that fits into your existing shower routine
  • You prefer an over-the-counter option before exploring prescription treatments

 

How Does Alpecin C1 Compare to Other Hair Loss Shampoos?

 

Feature Alpecin C1 Caffeine Shampoo Standard Anti-Hair Loss Shampoo
Active ingredient Caffeine Varies (e.g. ketoconazole, biotin)
Mechanism Follicle stimulation via caffeine absorption Varies by formulation
Prescription required No — OTC No — OTC (most)
Suitable for daily use Yes Depends on product

 

Is Alpecin C1 Suitable for Sensitive Scalps and How Should It Be Stored?

 

If you have a sensitive scalp, it's sensible to patch-test any new shampoo before committing to daily use. Alpecin caffeine shampoo contains a number of additional ingredients alongside caffeine — including niacinamide and zinc — which are generally well tolerated, but individual reactions can vary. Discontinue use if you notice persistent irritation, redness, or discomfort, and speak to your pharmacist. Women experiencing hair thinning may want to explore our female hair loss collection for more targeted options.

Store the shampoo below 25°C, away from direct sunlight, and keep it out of reach of children. It is for external use only — avoid contact with eyes, and if contact occurs, rinse thoroughly with water. Do not use on broken or irritated skin.

This product is a medicine. Speak to your doctor or pharmacist before using if you have an underlying medical condition or are taking other medicines.

Alpecin Caffeine Shampoo C1 250ml specifications
Treatment category Hair loss / Androgenetic alopecia
Mechanism of action Caffeine penetrates scalp to support hair follicle activity and extend anagen phase
Effective for Hereditary male pattern hair loss (androgenetic alopecia)
Suitable for Adult men with early to moderate hair thinning
Active ingredient Caffeine
Pack size 250ml
UK classification General Sale / OTC cosmetic-medicinal product
Preparation Shampoo (liquid)
Route of administration Topical — scalp application

Specifications of Alpecin Caffeine Shampoo C1 250ml

 

What Is Alpecin Caffeine Shampoo C1 and What Is It Used For?

 

Alpecin Caffeine Shampoo C1 is a topically applied shampoo containing caffeine as its primary active ingredient. It is used to help reduce hair loss associated with androgenetic alopecia — the medical term for hereditary male pattern baldness. The NHS notes that male pattern baldness is the most common type of hair loss in men, typically beginning with a receding hairline or thinning at the crown. This shampoo is intended to be used as part of a daily hair washing routine and is available without a prescription.

It is not a cure for hair loss, and it will not regrow hair that has already been lost from follicles that have become inactive. Its role is to support the scalp environment and help slow the progression of hereditary thinning when used consistently over time.

 

What Do You Need to Know Before Using Alpecin Caffeine Shampoo C1?

 

Before using this shampoo, read the following carefully. Although it is an over-the-counter product, there are important considerations to be aware of.

Do not use this product if:

  • You are allergic to caffeine or any other listed ingredient
  • You have an open wound, broken skin, or active scalp infection
  • You are a child — this product is intended for adult use only
  • You are a woman who is pregnant or breastfeeding, without first consulting your GP

Warnings and precautions:

  • For external use only — do not swallow
  • Avoid direct contact with eyes; rinse thoroughly with water if contact occurs
  • If scalp irritation develops and persists, discontinue use
  • Hair loss can sometimes indicate an underlying health condition — consult your GP if you are unsure of the cause

Known drug interactions:

  • No clinically significant drug interactions are currently known for topically applied caffeine shampoo
  • If you are using other topical scalp treatments simultaneously, speak to your pharmacist before combining products

 

How Should You Use Alpecin Caffeine Shampoo C1?

 

Using this shampoo correctly is important. The caffeine needs adequate contact time with the scalp to be absorbed effectively — simply rinsing it off immediately will reduce its potential benefit. Follow these steps each time you wash your hair:

  1. Wet your hair thoroughly with warm water
  2. Apply a sufficient amount of shampoo to cover the entire scalp
  3. Massage gently into the scalp using your fingertips — not your nails
  4. Leave the shampoo on the scalp for a minimum of two minutes
  5. Rinse thoroughly with water
  6. Repeat daily for consistent results
Indication Age Group Dose Frequency
Androgenetic alopecia (male pattern hair loss) Adult men (18+) Sufficient amount to cover scalp Once daily
Not indicated Children under 18 Not applicable Not applicable

 

What Are the Possible Side Effects of Alpecin Caffeine Shampoo C1?

 

Side effects with this shampoo are uncommon, but as with any topical product, some people may experience a reaction. If you notice anything unusual after starting use, stop and speak to your pharmacist. You might also find it helpful to browse our skin care collection if you're managing scalp sensitivity alongside other skin concerns.

Common side effects:

  • Mild scalp dryness
  • Temporary scalp tingling or mild irritation on first use

Less common side effects:

  • Scalp redness or itching
  • Contact dermatitis (allergic skin reaction) — rare
  • Increased scalp oiliness in some individuals

If you experience a severe allergic reaction — including swelling of the face, lips, or throat, or difficulty breathing — seek emergency medical attention immediately. This type of reaction is very rare but requires urgent care.

 

How Should You Store Alpecin Caffeine Shampoo C1?

 

Correct storage helps maintain the product's quality and safety throughout its shelf life. Men who are also managing other health conditions may find it useful to explore our men's health collection for additional support products.

  • Store below 25°C in a cool, dry place
  • Keep away from direct sunlight and heat sources
  • Keep out of reach and sight of children
  • Do not use after the expiry date printed on the bottle
  • Do not store in the bathroom if it is frequently very humid — a bedroom or cabinet is preferable

Written and reviewed by our qualified team

Your safety and success are our highest priorities. Our medical team rigorously evaluates every product and piece of advice we provide, ensuring you receive only the most effective, science-backed solutions available.

Frequently Asked Questions

Where can I buy Alpecin Caffeine Shampoo C1 online in the UK?

You can buy Alpecin Caffeine Shampoo C1 250ml directly from Cured Pharmacy online for £6.29, with no prescription required. It is dispatched from a GPhC-registered UK pharmacy, so you can order with confidence. Simply add it to your basket and choose your preferred delivery option at checkout.

How does Alpecin Caffeine Shampoo work in the body?

Alpecin caffeine shampoo works topically — the caffeine is absorbed through the scalp skin and reaches the hair follicles directly. Research suggests caffeine may help counteract the inhibitory effect of testosterone on follicle growth, potentially extending the active growth phase of the hair cycle. It does not enter the bloodstream in meaningful amounts when used as directed.

How do I use Alpecin Caffeine Shampoo C1 step by step?

Apply the shampoo to wet hair and massage it thoroughly into the scalp. Leave it in contact with the scalp for at least two minutes before rinsing — this contact time is essential for caffeine absorption. Use it daily as part of your regular shower routine for consistent results.

How long does it take for Alpecin Caffeine Shampoo to show results?

Hair growth cycles are slow, so noticeable changes typically take several months of consistent daily use. Most users are advised to continue for at least three to six months before assessing whether the product is working for them. Stopping use may result in hair loss resuming at its previous rate.

Can women use Alpecin Caffeine Shampoo C1?

Alpecin C1 is specifically formulated and marketed for men with androgenetic alopecia. Women experiencing hair thinning or loss should consult their GP or pharmacist, as the underlying causes and appropriate treatments often differ. You can also explore our female hair loss collection for products designed with women in mind.

What are the side effects of Alpecin Caffeine Shampoo?

Side effects are uncommon but can include mild scalp dryness, tingling, or irritation, particularly when first starting use. Less commonly, some people may experience scalp redness or itching. If any reaction persists or worsens, stop using the shampoo and speak to your pharmacist.

Is Alpecin Caffeine Shampoo suitable for sensitive scalps?

It may be suitable for sensitive scalps, but it is advisable to patch-test before committing to daily use. Apply a small amount to the scalp and wait 24 hours to check for any reaction. If you experience persistent irritation, redness, or discomfort, discontinue use and consult your pharmacist.

What is the best time to use Alpecin Caffeine Shampoo?

There is no strict requirement for a specific time of day — the most important thing is that you use it daily and allow it to remain on the scalp for at least two minutes. Many men find it easiest to incorporate into their morning shower routine. Consistency matters far more than timing.

What happens if I miss a day of using Alpecin Caffeine Shampoo?

Missing an occasional day is unlikely to significantly affect your results, but regular daily use is recommended for the best outcome. Simply resume your normal routine the following day — do not double up or apply extra product to compensate. Long gaps in use may reduce the cumulative benefit over time.

How long can you use Alpecin Caffeine Shampoo for?

Alpecin C1 is designed for long-term daily use as part of an ongoing hair care routine. There is no recommended maximum duration — continued use is generally necessary to maintain any benefit, as the underlying cause of androgenetic alopecia does not resolve on its own. If you have concerns about long-term use, speak to your pharmacist.

What are alternatives to Alpecin Caffeine Shampoo for hair loss?

Alternatives include other caffeine-based shampoos, ketoconazole shampoos, and topical minoxidil solutions, which are available over the counter for male pattern baldness. Prescription treatments such as finasteride may also be considered following a GP consultation. Browse our hair care collection to compare available options.

Does Alpecin Caffeine Shampoo actually work — what does the evidence say?

Laboratory studies have shown that caffeine can penetrate the scalp and may stimulate hair follicle activity in vitro. However, large-scale clinical trials in humans are more limited, and results can vary between individuals. It is considered a supportive measure rather than a clinically proven treatment in the same category as licensed medicines like minoxidil.

Can I use Alpecin Caffeine Shampoo alongside other hair loss treatments?

Many men use Alpecin C1 alongside other treatments such as topical minoxidil, but you should speak to your pharmacist or GP before combining products to ensure there are no interactions or scalp tolerance issues. Allow each product adequate time to absorb before applying the next. Do not use multiple shampoos simultaneously on the same wash.

Is Alpecin Caffeine Shampoo C1 suitable for all hair types?

Alpecin C1 is generally suitable for most hair types in adult men, including straight, wavy, and curly hair. It is a daily-use shampoo, so it is formulated to be gentle enough for regular washing. If you have a very dry scalp or existing scalp condition, check with your pharmacist before starting use.

Does Alpecin Caffeine Shampoo need to be used every day to be effective?

Yes — daily use is recommended to maintain consistent caffeine levels at the scalp and support ongoing follicle activity. Using it less frequently may reduce its effectiveness over time. Think of it like any other daily health habit: regularity is what makes the difference.

How Should You Use Alpecin Caffeine Shampoo C1?

Using Alpecin Caffeine Shampoo C1 correctly is essential to getting the most from it. The caffeine needs sufficient contact time with your scalp to be absorbed — rushing the process by rinsing immediately will significantly reduce its potential benefit.

What Is the Correct Dose of Alpecin Caffeine Shampoo C1?

There is no fixed measured dose for this shampoo — you simply use enough to cover the scalp adequately on each wash. The key factor is not the quantity used but the contact time: at least two minutes on the scalp per application. Do not apply more than once per day.

When Is the Best Time to Use Alpecin Caffeine Shampoo C1?

There is no clinically specified time of day for using this shampoo — morning or evening use is equally acceptable. Most men find it easiest to incorporate into their morning shower, making it a consistent part of their daily routine. What matters most is that you use it every day without long gaps, as consistency is key to maintaining any benefit.

If you are also using other topical scalp treatments, allow each product adequate time to absorb before applying the next. Speak to your pharmacist if you are unsure about the order of application.

How Long Can You Use Alpecin Caffeine Shampoo C1 For?

Alpecin C1 is designed for ongoing, long-term daily use. Because androgenetic alopecia is a chronic condition driven by genetics and hormones, there is no point at which you can stop and expect the benefit to continue indefinitely. If you discontinue use, hair loss is likely to resume at its previous rate over time.

There is no recommended maximum duration of use. Many men continue using it for years as part of their regular hair care routine. If you have any concerns about long-term use or notice unexpected changes to your scalp or hair, speak to your pharmacist or GP.

Do not exceed the recommended dose. If in doubt, speak to your pharmacist.

What Are the Most Common Side Effects of Alpecin Caffeine Shampoo C1?

Alpecin Caffeine Shampoo C1 is generally well tolerated when used as directed. The most commonly reported side effects are mild and tend to occur when first starting use, often settling with continued application as the scalp adjusts.

  • Mild scalp dryness
  • Temporary tingling or warming sensation on the scalp after application
  • Slight tightness of the scalp after rinsing

What Are the Less Common Side Effects of Alpecin Caffeine Shampoo C1?

Less commonly, some individuals may experience a more noticeable reaction to one or more of the ingredients in the formulation. These reactions are not typical but are worth being aware of before you start using the product.

  • Scalp redness or persistent itching
  • Increased scalp oiliness in some hair types
  • Flaking or mild dandruff-like shedding
  • Contact dermatitis — an allergic skin reaction causing redness, itching, or a rash on the scalp or surrounding skin

What Are the Serious Side Effects of Alpecin Caffeine Shampoo C1?

Serious side effects are very rare with topically applied caffeine shampoo. However, a severe allergic reaction (anaphylaxis) is possible with any cosmetic or topical product, even if uncommon. Signs of a serious allergic reaction include swelling of the face, lips, tongue, or throat, difficulty breathing, a widespread skin rash, or dizziness. If you experience any of these symptoms, stop using the product immediately and call 999 or go to your nearest A&E department.

What Should You Do If You Experience Side Effects of Alpecin Caffeine Shampoo C1?

For mild side effects such as dryness or tingling, you may wish to continue use and monitor whether the reaction settles within a few days. If irritation persists or worsens, stop using the shampoo and speak to your pharmacist. They can advise whether the reaction is likely to be product-related and suggest alternatives if needed. Do not ignore persistent scalp symptoms — they may occasionally indicate an underlying skin condition such as seborrhoeic dermatitis or psoriasis, which would benefit from a separate assessment.

Can Alpecin Caffeine Shampoo C1 Interact With Other Products or Medicines?

No clinically significant drug interactions are currently known for topically applied caffeine shampoo. Because the caffeine is applied to the scalp rather than taken orally, systemic absorption is minimal and interactions with oral medications are not expected. However, if you are using other topical scalp treatments — such as minoxidil solution or medicated shampoos — speak to your pharmacist before combining them, as simultaneous use of multiple products may affect scalp tolerance or absorption. Always inform your pharmacist of all products you are currently using, including over-the-counter items.

If you are concerned about any side effects, contact your pharmacist or GP immediately.

Patient Information Leaflet

Important - Before taking any medication, it is always important to read the Patient Information Leaflet (PIL)

Written and reviewed by our qualified team

GPhC Number: 2233073
Tarun Kumar

Reviewed by:

Tarun Kumar

Superintendent/ Clinical Lead

📖 Find out more about our team of medical content authors and how we ensure the accuracy of our content with our content guidelines.

Content last updated: 31 Mar 2025

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