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Lily
5 / 5

I take KSM-66 Ashwagandha® every morning. I feel calmer during the day and sleep better at night.

KSM-66 Ashwagandha® bundle

Food supplement with sweetener

The most researched full-spectrum ashwagandha root extract

  • Backed by 32+ studies¹
  • Proven to reduce stress, anxiety, and cortisol levels¹
  • Enhances memory, cognition, and mental alertness¹
  • Improves sleep quality and sleep onset1
  • Contributes to optimal relaxation4
  • Promotes the reduction in body weight⁴
  • Contributes to normal glucose – insulin metabolism²
  • Riboflavin contributes to normal functioning of the nervous system
  • Increases endurance, strength, and muscle recovery¹
  • Niacin contributes to normal psychological function
More than 4.7 million customers from all over the world
Net 300 g | for 60 days
How to use +

Mix 5 g (1 scoop) into a glass of water (150 ml) and drink.

For precise measuring we suggest weighing.

Warnings:

The recommended daily amount should not be exceeded. Food supplement is not a substitute for a balanced and varied diet and a healthy lifestyle. Keep out of reach of children. Not recommended to use during pregnancy and lactation.

Due to natural variations in the properties of the active ingredients, the colour, taste and smell of the product may vary slightly from batch to batch. These changes do not affect the overall quality and performance of the product.

Storage: store in a cool and dry place.

 

Key Ingredients +

KSM-66 Ashwagandha®,150 g– food supplement with sweetener

Ingredients: tapioca powder, KSM66 – Ashwagandha [Withania somnifera D.] root 5% Withanolides [HPLC] extract, ginseng extract (Panax ginseng C. A. Mey, root), chamomile (Matricaria chamomilla L., flower) extract, stabilizer: cellulose, lemon flavour, B-complex (vitamin B1 (Thiaminmononitrate), vitamin B2 (Riboflavine), vitamin B3 (Nicotine amid), vitamin B5 (Calcium-D-pantothenate), vitamin B6 (Pyridoxine hydrochloride), vitamin B9 (Pteroylmonoglutamic acid), vitamin B12 (Cyanocobalamid)), sweetener: steviol glycosides from stevia.

Contains naturally occurring sugars.

KSM-66 Ashwagandha® is a registered trademark of Ixoreal Biomed Inc.

Nutritional Value +
Active ingredients per serving (5 g)
KSM-66 Ashwagandha® extract 300 mg
 – of which withanolides 15 mg
Panax ginseng extract 100 mg
Chamomile extract 100 mg
Vitamin B1  1,1 mg (100 % NRV*)
Vitamin B2 1,4 mg (100 % NRV*)
Vitamin B6 1,4 mg (100 % NRV*)
Vitamin B12 2,5 μg (100 % NRV*)
Folic acid 200 μg (100 % NRV*)
Pantothenic acid 6 mg (100 % NRV*)
Niacin 16 mg (100 % NRV*)

* NRV = nutritional reference value

Certification +

Why Independent Testing Is Essential At Nature’s Finest, we believe that wellness starts with trust.

Here’s what our testing covers:

  • Ingredient Precision: We verify that the nutrients listed on our labels are present in the exact amounts promised.
  • Purity & Cleanliness: Each product is screened for substances such as heavy metals (including mercury, lead, and arsenic), common allergens (like soy, dairy, nuts, and gluten), and microbial threats like E. coli and salmonella.
  • Nutrient Verification: We confirm that both macronutrients and micronutrients are present and potent.

Explore our IFS Food Standard certification—the highest level of quality assurance in the industry—and see why Nature’s Finest stands above the rest. View our certification here.

Lily
5 / 5

I take KSM-66 Ashwagandha® every morning. I feel calmer during the day and sleep better at night.

£27.98 £39.98
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Everything you need to know:

What are the common signs my body needs support to manage stress? +

Your body often tells you when it’s under too much stress. Common signs include:

  • Finding it hard to fully relax or switch off after a demanding day.
  • Feeling less calm or patient than usual in everyday situations.
  • Reaching for snacks, sweets, or extra coffee to keep going through the day.
  • Noticing dips in energy or focus as the day progresses.
  • Feeling tension build up in your body after long hours or busy days.
  • Having moments when it’s harder to stay motivated or clear-minded.
How does KSM-66 Ashwagandha® support me? +

KSM-66 Ashwagandha® is a full spectrum natural extract that proven to reduce stress, anxiety, and cortisol levels1.

Regular use can offer the following:

  • Proven to reduce stress, anxiety, and cortisol levels¹
  • Enhances memory, cognition, and mental alertness¹
  • Improves sleep quality and sleep onset¹
  • Contributes to optimal relaxation⁴
  • Promotes the reduction in body weight⁴
I often have difficulty falling asleep due to busy days. Should I take it? +

Yes. Busy and demanding days can raise stress hormones, making it harder for your body to unwind in the evening.

KSM-66 Ashwagandha® helps your body adapt to stress by reducing stress, anxiety, and cortisol levels¹, so your mind and body can naturally transition into rest mode. Studies show it can improve sleep quality and sleep onset¹.

When is the best time for me to take it? +

For best results, we recommend regular use over a longer period of time.

You can take it either in the morning or in the evening, depending on your daily routine:

If taken in the morning, it can be part of your morning ritual and a great way to prepare for the day ahead.

KSM-66 Ashwagandha® is proven to reduce stress, anxiety, and cortisol levels¹, enhances memory, cognition, and mental alertness¹ and increases endurance, strength, and muscle recovery¹ – making it a perfect addition to start your day.

If taken in the evening, it can become a pleasant way to ease into a nice evening and night.

Chamomile extract contributes to optimal relaxation and helps to support relaxation and mental and physical well-being, which makes the product a perfect addition to your evening self-care routine.

Our customers also confirm that it works

4.9 / 5

Jack
starstarstarstarstar5/5

I started using it after work and it helps me unwind. I notice I don’t carry the stress from my day into the evening anymore.

Jack
Ella
starstarstarstarstar5/5

KSM-66 Ashwagandha® met all my expectations and made a real difference in how I feel every day. I finally found something that truly works for me.

Ella
Oscar
starstarstarstarstar5/5

At first, I was skeptical, but now I’m truly pleasantly surprised. I’m glad I decided to give it a try because it has met all my expectations.

Oscar
Ava
starstarstarstarstar5/5

What I like most about KSM-66 Ashwagandha® is how easy it is to use. I just mix it with water and it’s ready in a few seconds. It’s simple and fits perfectly into my day.

Ava
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The world’s most researched Ashwagandha - supported by studies

These are the key benefits of KSM – 66 Ashwagandha®

Proven to reduce stress, anxiety, and cortisol levels¹

In today’s fast-paced world, we are constantly surrounded by challenges and demands that can create feelings of tension and pressure in our everyday lives. KSM-66 Ashwagandha® can support us in such challenges.  The recommended dose can be taken once a day. If you choose to take it in the morning, you can enhance your morning routine with KSM-66 Ashwagandha®, which reduce stress, anxiety, and cortisol levels¹ and increases endurance, strength and muscle recovery1 throughout the day.

Improves sleep quality and sleep onset¹

Busy schedules, work, and everyday commitments often leave little time to rest and recharge. Even when we finally slow down, it’s not always easy to switch off and enjoy a good night’s sleep. The recommended dose can be taken once a day. If you choose to take it in the evening, you can in this way contribute to optimal relaxation⁴ and improve sleep quality and sleep onset¹.

Enhances memory, cognition, and mental alertness¹

The modern way of life has led to us being constantly surrounded by a flood of information and situations that demand our attention. KSM-66 Ashwagandha® has a long tradition of use and remains relevant even in today’s modern world because of the benefits it can offer.

Backed by 32+ studies¹

KSM-66 Ashwagandha® is one of the most researched ashwagandha extracts worldwide. Backed by 32+ studies¹.

Full-spectrum root extract

Standardized to more than 5% withanolides, it is one of the highest concentration, full-spectrum root extract on the market today, retaining all the natural constituents of the herb in the original balance.

Advanced 4-in-1 support for mind and body

Four-action formula with KSM-66 Ashwagandha®, Panax ginseng, B-complex, and Chamomile

Do you want to manage stress during busy days?

KSM-66 Ashwagandha® is proven to reduce stress, anxiety, and cortisol levels¹. For this reason, it’s the right choice for anyone looking for trusted, research-based support.

 

Do you want to support your memory and cognitive performance?

KSM-66 Ashwagandha® enhances memory, cognition, and mental alertness¹, while Panax ginseng contributes to normal cognitive performance and supports memory².

 

Would you like to end your day on a calm note?
Active ingredients in this formula improve sleep quality¹ and contribute to optimal relaxation⁴. This thoughtful combination makes it the right choice for your evening routine.

 

Do you want to support normal psychological function?

Vitamins B1, B2, B3, B5, B6, B9, and B12 contribute to normal psychological function and this is just one of many reasons why this blend is the right choice for you.

Reasons to start using KSM-66 Ashwagandha® today

If you start using KSM-66 Ashwagandha® today:

  • You help reduce stress, anxiety, and cortisol levels¹
  • You enhance memory, cognition, and mental alertness¹
  • You promote the reduction in body weight⁴
  • You improve sleep quality and sleep onset¹

If you start using KSM-66 Ashwagandha® later:

  • You miss out on support for reducing stress, anxiety, and cortisol levels
  • You continue without the benefits of improved focus and mental clarity
  • You miss out on support for the reduction in body weight
  • Your sleep quality and relaxation remain below their potential

Made from quality ingredients

KSM-66 Ashwagandha®

1. KSM-66 Ashwagandha®

KSM-66 is one of the highest concentration, full-spectrum ashwagandha root extract on the market today, standardized to >5% withanolides by HPLC.

Panax ginseng

2. Panax ginseng

Panax ginseng is a traditional adaptogenic root extract with a light beige to brown color, a characteristic herbal aroma, and a mildly bitter taste. It is known for its numerous benefits, including helping to maintain good cognitive performance and physical and mental capacities in cases of weakness, exhaustion, tiredness, and loss of concentration.

B-complex

3. B-complex

The B complex is a group of vitamins B1, B2, B6, B12, folic acid, pantothenic acid and niacin, which are important for our nervous system. In addition to their common function, each of the B vitamins has other important roles in our bodies.

Chamomile extract

4. Chamomile extract

Chamomile extract is a plant extract derived from chamomile flowers. Chamomile supports digestion and helps with indigestion and flatulence.

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Traceability of our raw materials

Discover the nature in our supplements! We carefully select and monitor every ingredient to ensure optimal performance, backed by proven scientific effectiveness. Our commitment to transparent traceability guarantees the integrity and excellence of all the elements in our products. Our products are IFS Standard certified under registration no.: 00063/0 and ECO certificat under certified no.: EPR-26420/22-1.

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60-day money-back guarantee

To make your purchase risk-free, we offer a 60-day money-back guarantee.
If you’re not completely satisfied with the product, simply contact us and we will refund your money.

-30%
KSM-66 Ashwagandha® bundle

KSM-66 Ashwagandha® bundle

Full-spectrum Ashwagandha backed by 32+ studies¹

  • Proven to reduce stress, anxiety, and cortisol levels¹
  • Contributes to normal functioning of the nervous system³
  • Contributes to normal glucose - insulin metabolism²
  • Promotes the reduction in body weight⁴
  • Contributes to optimal relaxation⁴

Frequently Asked Questions from Our Users

FAQ Icon

How and why does it work?

This formula is enhanced with Panax ginseng, Chamomile and B complex, ingredients perfectly combined together to tackle the effects of fast-paced lifestyle, reducing stress, anxiety, and cortisol levels¹, enhancing memory, cognition, and mental alertness¹ and contributing to optimal relaxation⁴.

FAQ Icon

Who is it for?

KSM-66 Ashwagandha® is designed for anyone who is looking to support their body to reduce stress, anxiety, and cortisol levels¹, contribute to normal functioning of the nervous system³ and promote reduction of body weight⁴.

FAQ Icon

What active ingredients does it contain?

KSM-66 Ashwagandha®1, panax ginseng2, B-complex3 and chamomile4.

FAQ Icon

When should I take it?

If you take it in the morning, you can enhance your morning routine with KSM-66 Ashwagandha®, which reduces stress, anxiety, and cortisol levels¹ and increases endurance, strength, and muscle recovery¹ throughout the day. Alternatively, if you take it in the evening, this can help contribute to optimal relaxation⁴ and improve sleep quality and sleep onset¹.

FAQ Icon

How long does shipping take?

We will do our best to process your order the same day and send it for delivery. On average, packages are delivered in 2 business days.

FAQ Icon

What if I don't like it?

No worries! If the product does not meet your expectations, we offer a 60-day refund.

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-30%
Lily
5 / 5

I take KSM-66 Ashwagandha® every morning. I feel calmer during the day and sleep better at night.

KSM-66 Ashwagandha® bundle

Food supplement with sweetener

The most researched full-spectrum ashwagandha root extract

  • Backed by 32+ studies¹
  • Proven to reduce stress, anxiety, and cortisol levels¹
  • Enhances memory, cognition, and mental alertness¹
  • Improves sleep quality and sleep onset1
  • Contributes to optimal relaxation4
  • Promotes the reduction in body weight⁴
  • Contributes to normal glucose – insulin metabolism²
  • Riboflavin contributes to normal functioning of the nervous system
  • Increases endurance, strength, and muscle recovery¹
  • Niacin contributes to normal psychological function
More than 4.7 million customers from all over the world
Net 300 g | for 60 days
How to use +

Mix 5 g (1 scoop) into a glass of water (150 ml) and drink.

For precise measuring we suggest weighing.

Warnings:

The recommended daily amount should not be exceeded. Food supplement is not a substitute for a balanced and varied diet and a healthy lifestyle. Keep out of reach of children. Not recommended to use during pregnancy and lactation.

Due to natural variations in the properties of the active ingredients, the colour, taste and smell of the product may vary slightly from batch to batch. These changes do not affect the overall quality and performance of the product.

Storage: store in a cool and dry place.

 

Key Ingredients +

KSM-66 Ashwagandha®,150 g– food supplement with sweetener

Ingredients: tapioca powder, KSM66 – Ashwagandha [Withania somnifera D.] root 5% Withanolides [HPLC] extract, ginseng extract (Panax ginseng C. A. Mey, root), chamomile (Matricaria chamomilla L., flower) extract, stabilizer: cellulose, lemon flavour, B-complex (vitamin B1 (Thiaminmononitrate), vitamin B2 (Riboflavine), vitamin B3 (Nicotine amid), vitamin B5 (Calcium-D-pantothenate), vitamin B6 (Pyridoxine hydrochloride), vitamin B9 (Pteroylmonoglutamic acid), vitamin B12 (Cyanocobalamid)), sweetener: steviol glycosides from stevia.

Contains naturally occurring sugars.

KSM-66 Ashwagandha® is a registered trademark of Ixoreal Biomed Inc.

Nutritional Value +
Active ingredients per serving (5 g)
KSM-66 Ashwagandha® extract 300 mg
 – of which withanolides 15 mg
Panax ginseng extract 100 mg
Chamomile extract 100 mg
Vitamin B1  1,1 mg (100 % NRV*)
Vitamin B2 1,4 mg (100 % NRV*)
Vitamin B6 1,4 mg (100 % NRV*)
Vitamin B12 2,5 μg (100 % NRV*)
Folic acid 200 μg (100 % NRV*)
Pantothenic acid 6 mg (100 % NRV*)
Niacin 16 mg (100 % NRV*)

* NRV = nutritional reference value

Certification +

Why Independent Testing Is Essential At Nature’s Finest, we believe that wellness starts with trust.

Here’s what our testing covers:

  • Ingredient Precision: We verify that the nutrients listed on our labels are present in the exact amounts promised.
  • Purity & Cleanliness: Each product is screened for substances such as heavy metals (including mercury, lead, and arsenic), common allergens (like soy, dairy, nuts, and gluten), and microbial threats like E. coli and salmonella.
  • Nutrient Verification: We confirm that both macronutrients and micronutrients are present and potent.

Explore our IFS Food Standard certification—the highest level of quality assurance in the industry—and see why Nature’s Finest stands above the rest. View our certification here.

Lily
5 / 5

I take KSM-66 Ashwagandha® every morning. I feel calmer during the day and sleep better at night.

£27.98 £39.98
Subscribe & save
One-time purchase

Switch to subscription and save £1.39
You can get the same for just £26.59. A convenient way to enjoy the best prices. You can change or cancel your subscription at any time!

Money-back guarantee for 60 days
Free shipping for orders from £50.00
Delivery within 2 working days
visa
mastercard
american_express
paypal

Questions? Call us: 020 8089 0131

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Nice products… hoping for an excellent outcome

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Great service, great communication between themselves and me. 5 star service.

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I like the liver cleanse .

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I love all the products, they all have different uses for, but at the end of the day they all work. I would definitely recommend it to anyone. Thank you for your existence, we cannot do it without you ❤️

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I’ve just finished the bio detox and liver cleanse, now going to try the man pro before reordering the detox/cleanse set in a months time. Would definitely recommend trying these products.

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Hi. My daughter is using you products and it works her makes her very happy. I believe it will be good for me as well and will help with my sleeping trouble thank you.

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KSM-66 Ashwagandha®,150 g– food supplement with sweetener

Ingredients: tapioca powder, KSM66 – Ashwagandha [Withania somnifera D.] root 5% Withanolides [HPLC] extract, ginseng extract (Panax ginseng C. A. Mey, root), chamomile (Matricaria chamomilla L., flower) extract, stabilizer: cellulose, lemon flavour, B-complex (vitamin B1 (Thiaminmononitrate), vitamin B2 (Riboflavine), vitamin B3 (Nicotine amid), vitamin B5 (Calcium-D-pantothenate), vitamin B6 (Pyridoxine hydrochloride), vitamin B9 (Pteroylmonoglutamic acid), vitamin B12 (Cyanocobalamid)), sweetener: steviol glycosides from stevia.

Contains naturally occurring sugars.

KSM-66 Ashwagandha® is a registered trademark of Ixoreal Biomed Inc.

Active ingredients per serving (5 g)
KSM-66 Ashwagandha® extract 300 mg
 – of which withanolides 15 mg
Panax ginseng extract 100 mg
Chamomile extract 100 mg
Vitamin B1  1,1 mg (100 % NRV*)
Vitamin B2 1,4 mg (100 % NRV*)
Vitamin B6 1,4 mg (100 % NRV*)
Vitamin B12 2,5 μg (100 % NRV*)
Folic acid 200 μg (100 % NRV*)
Pantothenic acid 6 mg (100 % NRV*)
Niacin 16 mg (100 % NRV*)

* NRV = nutritional reference value

Customer Reviews

There are no reviews yet.

Mix 5 g (1 scoop) into a glass of water (150 ml) and drink.

For precise measuring we suggest weighing.

Warning:

The recommended daily amount should not be exceeded. Food supplement is not a substitute for a balanced and varied diet and a healthy lifestyle. Keep out of reach of children. Not recommended to use during pregnancy and lactation.

Due to natural variations in the properties of the active ingredients, the colour, taste and smell of the product may vary slightly from batch to batch. These changes do not affect the overall quality and performance of the product.

Storage: store in a cool and dry place.

 

Why choose Nature`s Finest?

15

years of tradition

400+

unique products

50+

patented active ingredients

3mil+

satisfied customers

Natural

We believe in the perfection of nature. Our commitment extends to responsible sourcing of raw materials, including sustainability, ethics, and fair business principles. We prioritize eco-friendly packaging to reduce our carbon footprint.

The effectiveness of our products is confirmed by studies and research that are verifiable and repeatable. All our products are tested in independent laboratories, as our goal is to provide our customers with only the highest quality and effective products for their money.

Nature offers effective solutions for many challenges we face. Our experienced development team uses and combines these exceptional substances in our products so that the body can best utilize them. Active ingredients in our products are present in proven effective amounts, not just in small and negligible percentages.

Our products are tested through various user studies and trials that ensure their safety and effectiveness. We always listen carefully to the feedback from our customers and consider their opinions, criticisms, and suggestions to ensure that our products are truly tailored to their needs.

Meet our development experts

We are proud to have only the best experts in the field of nutrition and food supplements on our team, who ensure the development and exceptional quality of our products. With outstanding dedication, they lead studies and research and collaborate with external laboratories, inspection bodies, and other experts to ensure the highest quality and safety of our products.

With rich experience and professional knowledge of the industry, our experts strive to provide Nutrisslim customers with the most innovative products, thus maintaining its status as one of the leading companies in the field of nutrition and food supplements.

Meta Bizjak

M.Sc. Nutrition Engineering

Pia Fistrovič

Food and Nutrition Engineer

#WeAreNature

»Committed to delivering the most natural products to your home«

For more than 15 years, Nature’s Finest has been dedicated to offering natural solutions for those who wish to overcome challenges and discomforts through a lifestyle. We use only 100% natural ingredients, traditionally grown without additives or unnecessary processing. Whenever possible, we use ingredients from organic farming, supported by the SI-EKO-001 certificate.

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