Skip to product information
1 of 1

  • Images are for illustration purposes only

Nourkrin Shampoo for Hair Growth

Nourkrin Shampoo for Hair Growth

  • 1. Ozempic®️-equivalent therapy now available for weight management
  • 2. Average weight loss of 17%, with 1 in 3 patients achieving over 20%
  • 3. May help reduce osteoarthritis-related pain
  • 4. Wegovy®️ is not expected to impact the effectiveness of oral contraceptives
  • 5. Supports cardiovascular risk reduction
  • 6. Over 22 million patients treated with semaglutide-based therapies since 2018

  • ✔️ Supports the natural hair growth cycle with Marilex fish extract
  • ✔️ Contains biotin and zinc to nourish the scalp from the outside
  • ✔️ Suitable for both men and women with thinning hair
  • ✔️ Gentle formula designed for daily use on all hair types
  • ✔️ Complements Nourkrin oral supplements for a combined approach

Price Checker

Regular price £12.95
Sale price £12.95
Sale Sold out
  • Lowest price guarantee
  • Includes FREE private prescription
View full details

 

Is Nourkrin Shampoo for Hair Growth Right for You?

 

Hair thinning affects millions of people across the UK — and it can feel disheartening, whether it comes on gradually or seems to happen all at once. Nourkrin shampoo for hair growth is a topical scalp shampoo designed to be used as part of a daily hair care routine, helping to support the natural hair growth cycle from the outside in. Available over the counter for £12.95, it offers an accessible starting point for anyone noticing their hair becoming finer or less dense over time. If you're exploring options for thinning hair, you'll find a range of related products in our hair care collection.

Nourkrin is a well-established brand in the hair wellness space, and this shampoo is formulated to complement the Nourkrin supplement range. It contains a blend of ingredients — including the brand's signature Marilex fish extract, biotin, and zinc — chosen to nourish the scalp and create a healthier environment for hair to grow. It is not a medicine in the traditional sense, but rather a cosmetic shampoo with functional ingredients backed by the brand's broader research programme.

 

How Does Nourkrin Shampoo Work on the Scalp?

 

The shampoo works primarily by delivering key nutrients directly to the scalp during washing. Here's how its main components contribute:

  • Marilex (fish extract): A proprietary proteoglycan-rich extract derived from deep-sea fish, Marilex is the cornerstone of the Nourkrin range. Proteoglycans play a role in regulating the hair follicle growth cycle, particularly the transition between the resting (telogen) and active growth (anagen) phases.
  • Biotin (Vitamin B7): Biotin is involved in keratin production — the structural protein that makes up hair strands. Low biotin levels have been associated with hair thinning in some individuals.
  • Zinc: Zinc contributes to normal hair tissue growth and repair. The NHS notes that zinc deficiency can contribute to hair loss, making adequate zinc intake important for scalp health.
  • Gentle cleansing base: The shampoo is formulated to cleanse without stripping the scalp of its natural oils, which is important for maintaining a healthy follicle environment.

 

Who Should Consider Using This Shampoo?

 

This shampoo is designed for adults who are experiencing hair thinning or reduced hair density and want a gentle, topical option to incorporate into their existing routine. It is suitable for both men and women. That said, it's worth understanding that hair loss has many potential causes — from nutritional deficiencies and hormonal changes to stress and genetics — and a shampoo alone may not address the underlying reason. If your hair loss is sudden, patchy, or accompanied by other symptoms, it's worth speaking to your GP first.

This product may be particularly suitable for you if:

  • You are experiencing gradual, diffuse hair thinning rather than patchy hair loss
  • You want to complement an existing hair supplement routine (such as Nourkrin tablets)
  • You prefer a topical, non-medicated approach to supporting hair growth
  • You have colour-treated or chemically processed hair and need a gentle formula

 

How Does Nourkrin Shampoo Compare to Other Hair Growth Shampoos?

 

Feature Nourkrin Shampoo Generic Biotin Shampoo
Key active ingredient Marilex fish extract + biotin + zinc Biotin only
Targets hair growth cycle Yes — via proteoglycan support Indirectly via keratin support
Suitable for daily use Yes Yes
Part of a wider system Yes — pairs with Nourkrin tablets Typically standalone

 

Is Nourkrin Shampoo Suitable for Sensitive Scalps?

 

Nourkrin shampoo for hair growth uses a mild cleansing base, making it generally well tolerated by people with sensitive scalps. However, as with any topical product, there is always a small risk of skin sensitivity. If you have a known allergy to fish or fish-derived products, you should avoid this shampoo due to the Marilex fish extract content. Always check the full ingredient list before use. Women dealing with hormonally driven hair thinning may also want to explore our female hair loss collection for additional support options.

Store the shampoo below 25°C, away from direct sunlight, and keep it out of reach of children. Do not use past the expiry date printed on the packaging.

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

Nourkrin Shampoo for Hair Growth specifications
Treatment category Hair care / Hair growth support
Mechanism of action Delivers proteoglycans (Marilex), biotin, and zinc to the scalp to support the hair follicle growth cycle
Effective for Thinning hair, reduced hair density
Suitable for Adults (men and women); not recommended for children under 12
Active ingredient Marilex (fish extract), biotin, zinc
UK classification Cosmetic product (not a licensed medicine)
Preparation Shampoo (liquid)
Route of administration Topical (scalp application)

Specifications of Nourkrin Shampoo for Hair Growth

 

What Is Nourkrin Shampoo and What Is It Used For?

 

Nourkrin Shampoo for Hair Growth is a topical scalp shampoo formulated to support the natural hair growth cycle in adults experiencing thinning or reduced-density hair. It is not a licensed medicine — it is classified as a cosmetic product — but it contains functional ingredients, including the brand's proprietary Marilex fish extract, biotin, and zinc, which are intended to nourish the scalp and help maintain a healthy environment for hair follicles. It is designed for regular use as part of a daily hair care routine, either alone or alongside Nourkrin supplement tablets.

Hair loss and thinning can result from a wide range of causes. The NHS identifies common contributors including genetics, hormonal changes (such as those following pregnancy or the menopause), nutritional deficiencies, and stress. This shampoo is aimed at those experiencing gradual, diffuse thinning rather than sudden or patchy hair loss, which should always be assessed by a GP. If you're also considering internal support, our vitamins and supplements collection includes products that may complement a topical hair care routine.

 

What Do You Need to Know Before Using Nourkrin Shampoo?

 

Before using this shampoo, please read the following carefully:

Do not use this shampoo if you:

  • Are allergic to fish or any fish-derived ingredients (Marilex is a fish extract)
  • Are allergic to any other ingredient listed on the product label
  • Are under 12 years of age

Warnings and precautions:

  • For external use only — avoid contact with eyes; if contact occurs, rinse thoroughly with water
  • Discontinue use immediately if you develop scalp irritation, redness, or an allergic reaction
  • If your hair loss is sudden, patchy, or accompanied by other symptoms, consult your GP before starting any hair care product
  • Pregnant or breastfeeding women should consult a pharmacist or GP before use, as a precaution
  • Keep out of reach and sight of children

Known drug interactions:

  • No clinically significant drug interactions are known for topical cosmetic shampoos of this type
  • If you are using any medicated scalp treatments (e.g. minoxidil solution), speak to your pharmacist before combining products

 

How Should You Apply Nourkrin Shampoo Correctly?

 

Using this shampoo correctly gives you the best chance of seeing results over time. Follow these steps each time you wash your hair:

  1. Wet your hair thoroughly with warm water
  2. Apply a generous amount of Nourkrin Shampoo to your scalp and hair
  3. Massage gently into the scalp using your fingertips — avoid scratching with nails
  4. Leave the shampoo on for 1–2 minutes to allow the active ingredients to contact the scalp
  5. Rinse thoroughly with warm water
  6. Repeat if desired, or follow with a conditioner if needed
Indication Age Group Amount Frequency
Thinning hair / hair growth support Adults (18+) Sufficient to lather scalp and hair Daily or as regular shampoo
Thinning hair / hair growth support Adolescents (12–17) Sufficient to lather scalp and hair Daily or as regular shampoo (under adult supervision)
Not recommended Under 12 years

 

What Are the Possible Side Effects of Nourkrin Shampoo?

 

Like all topical products, Nourkrin Shampoo may cause side effects in some people, although not everyone will experience them. The NHS advises that any new scalp or skin product should be patch-tested before full use if you have a history of sensitive skin or allergies.

Common side effects:

  • Mild scalp tingling or sensitivity during initial use
  • Temporary dryness if used more frequently than needed for your hair type

Less common side effects:

  • Scalp redness or irritation
  • Contact dermatitis (allergic skin reaction) — particularly in those with fish allergies
  • Eye irritation if product enters the eyes

If you experience any severe reaction, including significant swelling, difficulty breathing, or widespread skin rash, seek urgent medical attention as this may indicate a serious allergic reaction (anaphylaxis). Stop using the product immediately and do not restart without medical advice.

 

How Should You Store Nourkrin Shampoo?

 

Correct storage helps maintain the quality and effectiveness of the product. Follow these guidelines:

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

If you are also managing other aspects of your health alongside hair care, our skin care collection includes products to support scalp and skin health more broadly.

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 Nourkrin Shampoo for Hair Growth online in the UK?

You can buy Nourkrin Shampoo for Hair Growth directly from Cured Pharmacy, a GPhC-registered UK online pharmacy, for £12.95. It is available without a prescription and dispatched quickly from our UK-based pharmacy. No GP referral is needed — simply add it to your basket and check out securely.

How does Nourkrin Shampoo work in the body?

Nourkrin Shampoo works topically on the scalp rather than systemically in the body. Its key ingredient, Marilex — a proteoglycan-rich fish extract — is designed to support the hair follicle growth cycle by influencing the transition between the resting and active growth phases. Biotin and zinc in the formula further support keratin production and scalp tissue health.

How do I use Nourkrin Shampoo step by step?

Wet your hair, apply a sufficient amount of shampoo to the scalp and hair, and massage gently with your fingertips for 1–2 minutes before rinsing thoroughly. You can use it as your everyday shampoo and follow with a conditioner if needed. Consistent daily use is recommended for best results over time.

How long does it take for Nourkrin Shampoo to show results?

Hair growth cycles are slow — the anagen (active growth) phase can last months, and visible changes typically take at least 3–6 months of consistent use to become apparent. Results will vary depending on the underlying cause of your hair thinning and whether you are also using complementary products such as Nourkrin tablets. Patience and consistency are key.

Can women use Nourkrin Shampoo for hair loss?

Yes, Nourkrin Shampoo is suitable for both men and women experiencing thinning hair. It is particularly popular among women dealing with diffuse hair thinning related to hormonal changes, nutritional gaps, or stress. Women looking for additional targeted support can also explore our female hair loss collection for complementary options.

What are the side effects of Nourkrin Shampoo?

Most people tolerate Nourkrin Shampoo well, but mild scalp tingling, temporary dryness, or irritation can occasionally occur, particularly during initial use. Less commonly, contact dermatitis or an allergic reaction may develop — especially in people with a fish allergy, given the Marilex fish extract content. Stop use and consult a pharmacist or GP if any reaction persists or worsens.

Is Nourkrin Shampoo suitable for colour-treated or chemically processed hair?

Nourkrin Shampoo uses a gentle cleansing base that is generally considered suitable for colour-treated and chemically processed hair. However, if you have had recent chemical treatments such as perming or relaxing, it is worth checking with your hairdresser or pharmacist before introducing any new scalp product. Always patch-test if you have a history of scalp sensitivity.

Can I use Nourkrin Shampoo every day?

Yes, Nourkrin Shampoo is designed for daily use as a regular shampoo replacement. Daily use allows the active ingredients to consistently contact the scalp, which is important for supporting the hair growth cycle over time. If you find daily washing dries your hair type, you can adjust frequency and use a moisturising conditioner alongside it.

Who is eligible to use Nourkrin Shampoo?

Nourkrin Shampoo is suitable for adults and adolescents aged 12 and over who are experiencing thinning hair or reduced hair density. It is not recommended for children under 12. People with a known fish allergy should avoid this product due to the Marilex fish extract. If you are pregnant, breastfeeding, or have an underlying scalp condition, speak to your pharmacist or GP before use.

What happens if I miss using Nourkrin Shampoo for a few days?

Missing a few days of use will not cause any harm — this is a cosmetic shampoo, not a medicine with a strict dosing schedule. Simply resume your normal routine when you can. Consistency over weeks and months matters more than any individual wash, so don't worry about occasional gaps.

What are the alternatives to Nourkrin Shampoo for hair growth?

Alternatives include other topical hair growth shampoos containing ketoconazole, caffeine, or saw palmetto, as well as medicated treatments such as minoxidil solution for more significant hair loss. You can also explore hair growth supplements in our vitamins and supplements collection. For prescription-strength options, a GP referral may be needed.

How long can you use Nourkrin Shampoo for?

There is no set maximum duration for using Nourkrin Shampoo — it can be used as your regular shampoo on an ongoing basis. Many people continue use long-term to maintain the scalp environment that supports healthy hair growth. If you notice no improvement after 6 months of consistent use, it is worth speaking to your GP to investigate any underlying cause of hair thinning.

Can I use Nourkrin Shampoo alongside Nourkrin tablets?

Yes — Nourkrin Shampoo is specifically designed to complement the Nourkrin oral supplement range. Using both together provides both topical scalp support and internal nutritional support for the hair growth cycle. There are no known interactions between the shampoo and the tablets when used as directed.

Is Nourkrin Shampoo safe to use if I have a fish allergy?

No — if you have a known allergy to fish or fish-derived products, you should not use Nourkrin Shampoo. The Marilex ingredient is a proteoglycan extract derived from deep-sea fish, and using it could trigger an allergic reaction. Speak to your pharmacist about alternative hair growth shampoos that do not contain fish-derived ingredients.

What does the latest research say about proteoglycans and hair growth?

Research into proteoglycans and hair follicle biology suggests that these molecules play a role in regulating the hair growth cycle, particularly in signalling between the dermal papilla and the follicle epithelium. The Nourkrin brand cites its own clinical programme in support of Marilex, though independent large-scale trials on this specific extract remain limited. If you want to explore the evidence base further, speaking to a dermatologist or trichologist is a good next step.

How Should You Use Nourkrin Shampoo?

Using Nourkrin Shampoo correctly is straightforward, but taking a little extra care during application helps the active ingredients — including Marilex, biotin, and zinc — make proper contact with your scalp. Follow these steps each time you wash your hair:

Avoid using very hot water, as this can strip the scalp of natural oils and potentially irritate sensitive skin. Pat hair dry gently with a towel rather than rubbing vigorously.

What Is the Correct Dose of Nourkrin Shampoo?

There is no fixed measured dose for a cosmetic shampoo — the amount you use will depend on your hair length and thickness. The table below provides general guidance on usage by age group and indication.

Using more shampoo than needed will not improve results — the key is consistent, regular use over time rather than the quantity applied per wash.

When Is the Best Time to Use Nourkrin Shampoo?

There is no clinically specified time of day for using this shampoo — use it whenever you would normally wash your hair. Morning showers are popular as they allow the scalp to remain product-free throughout the day, but evening use is equally effective. What matters most is consistency: using the shampoo regularly as part of your established routine is far more important than the time of day you choose.

If you are also taking Nourkrin oral tablets, try to align your shampoo use with your supplement routine to build a consistent daily habit. This makes it easier to maintain long-term adherence, which is essential given that hair growth cycles take several months to show visible change.

How Long Can You Use Nourkrin Shampoo For?

Nourkrin Shampoo can be used on an ongoing, long-term basis as your regular shampoo. There is no recommended maximum duration of use. Most people who see benefit continue using it indefinitely to maintain the scalp environment that supports healthy hair growth. If you have been using the shampoo consistently for 6 months without noticing any improvement in hair density or thickness, it is worth booking an appointment with your GP to explore whether an underlying medical cause — such as a nutritional deficiency, thyroid condition, or hormonal imbalance — may be contributing to your hair thinning.

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

What Are the Most Common Side Effects of Nourkrin Shampoo?

Nourkrin Shampoo is generally well tolerated when used as directed. Most people experience no side effects at all. However, as with any topical product applied to the scalp, mild reactions can occasionally occur, particularly when you first start using it.

  • Mild scalp tingling or warmth during or after application
  • Temporary scalp dryness, particularly if used more frequently than your hair type requires
  • Slight itching of the scalp during initial use

These effects are usually mild and tend to settle as your scalp adjusts to the product. If they persist beyond the first week or two of use, stop using the shampoo and speak to your pharmacist.

What Are the Less Common Side Effects of Nourkrin Shampoo?

Less commonly, some people may experience a more noticeable reaction to one or more of the ingredients in the formula. These reactions are more likely in people with sensitive skin or a history of scalp conditions.

  • Scalp redness or inflammation
  • Contact dermatitis — a localised allergic skin reaction causing redness, itching, or a rash on the scalp or hairline
  • Eye irritation if the shampoo accidentally enters the eyes during rinsing
  • Increased scalp flaking in people with pre-existing seborrhoeic dermatitis

If you experience any of these effects, discontinue use immediately and rinse the scalp thoroughly with cool water. Consult your pharmacist or GP if symptoms do not resolve within 48 hours.

What Are the Serious Side Effects of Nourkrin Shampoo?

Serious side effects are rare but possible, particularly in individuals with a known allergy to fish or fish-derived products. Marilex, the key active ingredient in this shampoo, is derived from deep-sea fish, and exposure could trigger an allergic reaction in susceptible individuals.

Seek emergency medical attention immediately if you experience any of the following after using this product:

  • Sudden swelling of the face, lips, tongue, or throat
  • Difficulty breathing or swallowing
  • Widespread skin rash, hives, or severe itching across the body
  • Dizziness, rapid heartbeat, or feeling faint

These symptoms may indicate anaphylaxis — a severe, potentially life-threatening allergic reaction. Call 999 immediately if you suspect anaphylaxis.

What Should You Do If You Experience Side Effects?

For mild side effects such as scalp tingling or dryness, simply reduce the frequency of use and monitor whether symptoms improve. For moderate reactions such as redness or contact dermatitis, stop using the shampoo and allow the scalp to recover before seeking advice from a pharmacist. Do not restart use without professional guidance if you have experienced an allergic reaction.

You can also report suspected side effects from cosmetic products to the MHRA via the Yellow Card scheme at yellowcard.mhra.gov.uk. This helps regulators monitor the safety of products available in the UK.

Can Nourkrin Shampoo Interact With Other Scalp Treatments?

No clinically significant drug interactions are known for Nourkrin Shampoo when used as a standalone product. However, if you are currently using a medicated scalp treatment — such as minoxidil solution, ketoconazole shampoo, or a corticosteroid scalp application — it is advisable to speak to your pharmacist before combining products. Using multiple active topical treatments simultaneously may increase the risk of scalp irritation or alter the absorption of medicated ingredients.

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

We’re a safe and
regulated UK service

Registered Pharmacy Badge

Lowest Price Guarantee

We're convinced you won't find your treatment cheaper, but if you do we'll refund the difference.

Find out more

100% discreet packaging

We're convinced you won't find your treatment cheaper, but if you do we'll refund the difference.

Find out more

Agent

Need help?
Talk to our friendly experts now

How our service works

Service Setup

Service setup

Discreet Packaging

Discreet packaging

Express Delivery

Express delivery