Doctor's Best Calm with Zembrin, 25mg - 60 vcaps
Doctor's Best Calm with Zembrin, 25mg - 60 vcaps
"Very quick delivery. Used 3 times, each order arrived the next day before 12:00"
Hugo Dover
"Reliable & original products, with fast next day delivery. Have been using Welzo for over a year now."
Elina Goulliard
"Welzo is great, lots of support from customer service who are easy to get a hold of and quick delivery."
Elizabeth Moore

Product Description

Doctor's Best Calm with Zembrin is a stress relief supplement that helps ease anxiety and sharpen focus thanks to Zembrin, a patented Sceletium tortuosum extract. This plant-based formula is built for daily use, delivering a calm, non-sedating mood lift that keeps your thinking clear on busy days. The brand has a long-standing commitment to science-based nutrition, tight quality control, and transparent sourcing that shoppers trust.

Available Sizes & Variants:

60 vcaps – convenient everyday dose for ongoing mood support.

Benefits & Features:

  • Calms nerves and keeps mood balanced without making you drowsy.
  • Zembrin helps mood and focus by gently modulating brain pathways that deal with stress.
  • Non-drowsy formula makes it easy to take daily, even on busy days.
  • Produced in GMP facilities with standardised Zembrin, ensuring quality and consistency across batches, and many shoppers also explore probiotics for gut health to support overall wellbeing.
  • For best results, many users pair this with a regular routine and give it several weeks to support mood stability, attention and everyday calm with consistent use.

Doctor's Best Calm with Zembrin draws on science-based nutrition, using Zembrin, a branded Sceletium tortuosum extract sourced to high standards. Zembrin is produced under strict licensing in South Africa and carries GRAS status in the United States, with third party checks for authenticity. For those using calm magnesium or probiotics for gut health, this plant-based formula fits neatly into a balanced wellness plan. In practice, studies show reduced anxiety and improved mood and cognitive performance without sedation, helping you stay calm and focused. The brand's GMP manufacturing, transparent sourcing, and vegan-friendly formulation set it apart in the supplement space.

Ingredients/Specifications

Zembrin (Sceletium tortuosum aerial parts extract), Zembrin (Sceletium tortuosum aerial parts extract)

UK Delivery & Returns

United Kingdom Shipping:

Orders placed by 2pm (Monday to Friday) are dispatched the same day. Orders placed after 2pm will be dispatched the next working day.

Free shipping on orders over £50 to the UK.

Returns: Our products are meant to make you feel healthy and at your best. If you need to return your item, you can do so free of charge within 30 days in the same original and unopened packaging. Subject to T&C's.

How to use

Take 1 capsule daily with or without food, or as recommended by a nutritionally informed physician. Daily oral dose not to exceed 25 mg. Store in a cool, dry place. Consult your doctor before use if you are pregnant, nursing, or taking antidepressants or anxiety medications. Discontinue use two weeks prior to surgery. Keep out of reach of children.

Please consult the product packaging for accurate instructions on how to use the product.

Nutritional Information

  Amount
Per Serving
%RI*
Zembrin (Sceletium tortuosum aerial parts extract) 25 mg

*Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

The Active Ingredient Is: Sceletium tortuosum Extract (Zembrin)

Sceletium tortuosum extract, commonly known as Zembrin, is a well-known branded plant-based ingredient used to support mood balance and calm. This patented extract is derived from the above-ground parts of the plant and is a recognised herbal supplement ingredient.

This form is produced under South African licensing and is described as a standardised branded extract with safety assessments and GRAS status in the United States, which shows its authenticity and quality.

What Does Sceletium tortuosum Extract Do?

Scientific research suggests it helps modulate the serotonin system and may influence aspects of stress reactivity and mood, with findings indicating calmer mood and improved cognitive flexibility without sedation.

Dr. ter Huurne of the University of Groningen reported reductions in anxiety-related amygdala reactivity, supporting a role in mood and stress modulation as part of normal brain function.

This product is not intended to diagnose, treat, cure, or prevent any disease.

Why it's Welzo

Doctor's Best stands out to us for its science-led approach and well-established reputation in the global supplement field. The brand is renowned for transparency, rigorous ingredient selection, and a commitment to clinically researched, branded ingredients, which aligns with Welzo’s pursuit of trusted, evidence-based products. This heritage positions Doctor's Best as a dependable partner among competitors by emphasising quality and traceability from sourcing to formulation.

Calm with Zembrin benefits from the manufacturer’s capability to utilise standardized, branded ingredients and GMP-compliant production, underscoring a robust quality framework for this plant-based blend. The Zembrin® ingredient is produced under stringent licensing and traceability, with third-party validation of authenticity and safety, reinforcing confidence in product integrity. For Welzo customers, this translates into a product that is thoughtfully formulated to support focus and mood balance without sedative effects, backed by credible research.

Welzo selected Doctor's Best after our team of medical experts evaluated their brand reputation, testing practices, and manufacturing standards using our rigorous testing protocols. Our trust is reinforced by the brand’s clear commitment to quality and safety, which we reflect in our product curation. For more on our evaluation, visit our our team of medical experts and our rigorous testing protocols.

Doctor's Best Calm with Zembrin, 25mg - 60 vcaps

96 Reviews
See full range
Doctor's Best Calm with Zembrin is a stress relief supplement that helps ease anxiety and sharpen focus thanks to Zembrin, a patented Sceletium tortuosum extract.
£33.45
Sale price £33.45
Save 15% Regular price £39.35
Secure Transaction
Excellent
Free UK delivery of orders over £50
Order within , for delivery by tomorrow, April 27.
As seen in

Product Description

Doctor's Best Calm with Zembrin is a stress relief supplement that helps ease anxiety and sharpen focus thanks to Zembrin, a patented Sceletium tortuosum extract. This plant-based formula is built for daily use, delivering a calm, non-sedating mood lift that keeps your thinking clear on busy days. The brand has a long-standing commitment to science-based nutrition, tight quality control, and transparent sourcing that shoppers trust.

Available Sizes & Variants:

60 vcaps – convenient everyday dose for ongoing mood support.

Benefits & Features:

  • Calms nerves and keeps mood balanced without making you drowsy.
  • Zembrin helps mood and focus by gently modulating brain pathways that deal with stress.
  • Non-drowsy formula makes it easy to take daily, even on busy days.
  • Produced in GMP facilities with standardised Zembrin, ensuring quality and consistency across batches, and many shoppers also explore probiotics for gut health to support overall wellbeing.
  • For best results, many users pair this with a regular routine and give it several weeks to support mood stability, attention and everyday calm with consistent use.

Doctor's Best Calm with Zembrin draws on science-based nutrition, using Zembrin, a branded Sceletium tortuosum extract sourced to high standards. Zembrin is produced under strict licensing in South Africa and carries GRAS status in the United States, with third party checks for authenticity. For those using calm magnesium or probiotics for gut health, this plant-based formula fits neatly into a balanced wellness plan. In practice, studies show reduced anxiety and improved mood and cognitive performance without sedation, helping you stay calm and focused. The brand's GMP manufacturing, transparent sourcing, and vegan-friendly formulation set it apart in the supplement space.

Ingredients/Specifications

Zembrin (Sceletium tortuosum aerial parts extract), Zembrin (Sceletium tortuosum aerial parts extract)

UK Delivery & Returns

United Kingdom Shipping:

Orders placed by 2pm (Monday to Friday) are dispatched the same day. Orders placed after 2pm will be dispatched the next working day.

Free shipping on orders over £50 to the UK.

Returns: Our products are meant to make you feel healthy and at your best. If you need to return your item, you can do so free of charge within 30 days in the same original and unopened packaging. Subject to T&C's.

How to use

Take 1 capsule daily with or without food, or as recommended by a nutritionally informed physician. Daily oral dose not to exceed 25 mg. Store in a cool, dry place. Consult your doctor before use if you are pregnant, nursing, or taking antidepressants or anxiety medications. Discontinue use two weeks prior to surgery. Keep out of reach of children.

Please consult the product packaging for accurate instructions on how to use the product.

Nutritional Information

  Amount
Per Serving
%RI*
Zembrin (Sceletium tortuosum aerial parts extract) 25 mg

*Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

The Active Ingredient Is: Sceletium tortuosum Extract (Zembrin)

Sceletium tortuosum extract, commonly known as Zembrin, is a well-known branded plant-based ingredient used to support mood balance and calm. This patented extract is derived from the above-ground parts of the plant and is a recognised herbal supplement ingredient.

This form is produced under South African licensing and is described as a standardised branded extract with safety assessments and GRAS status in the United States, which shows its authenticity and quality.

What Does Sceletium tortuosum Extract Do?

Scientific research suggests it helps modulate the serotonin system and may influence aspects of stress reactivity and mood, with findings indicating calmer mood and improved cognitive flexibility without sedation.

Dr. ter Huurne of the University of Groningen reported reductions in anxiety-related amygdala reactivity, supporting a role in mood and stress modulation as part of normal brain function.

This product is not intended to diagnose, treat, cure, or prevent any disease.

Why it's Welzo

Doctor's Best stands out to us for its science-led approach and well-established reputation in the global supplement field. The brand is renowned for transparency, rigorous ingredient selection, and a commitment to clinically researched, branded ingredients, which aligns with Welzo’s pursuit of trusted, evidence-based products. This heritage positions Doctor's Best as a dependable partner among competitors by emphasising quality and traceability from sourcing to formulation.

Calm with Zembrin benefits from the manufacturer’s capability to utilise standardized, branded ingredients and GMP-compliant production, underscoring a robust quality framework for this plant-based blend. The Zembrin® ingredient is produced under stringent licensing and traceability, with third-party validation of authenticity and safety, reinforcing confidence in product integrity. For Welzo customers, this translates into a product that is thoughtfully formulated to support focus and mood balance without sedative effects, backed by credible research.

Welzo selected Doctor's Best after our team of medical experts evaluated their brand reputation, testing practices, and manufacturing standards using our rigorous testing protocols. Our trust is reinforced by the brand’s clear commitment to quality and safety, which we reflect in our product curation. For more on our evaluation, visit our our team of medical experts and our rigorous testing protocols.

See full range
1 of 4

Where can I buy Doctor's Best Calm with Zembrin, 25mg - 60 vcaps in the United Kingdom?

What is the shelf life of Doctor's Best Calm with Zembrin, 25mg - 60 vcaps?

Where is Welzo based?

Disclaimer

Content team: Dr Sameer Nakedar

Role: Chief Medical Officer

MBBS (London, UK), MRCGP, PGCert

Content team: Paola Drexlar

Role: Medical Content Writer, UK

BA (Hons) Journalism