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Description

Onyx Nutra's Relaxation+ Ashwagandha KSM-66® Calm Complex combines a premium 5,000mg blend of KSM-66® full-spectrum root extract with L-Tryptophan, Lemon Balm, Chamomile, and a suite of B Vitamins. Vitamin B6 contributes to normal psychological function and to the normal functioning of the nervous system. Formulated with one of the most researched Ashwagandha extracts on the market. Vegan and UK-made.

New to ashwagandha? Read our guide: KSM-66 Ashwagandha: What the Trademark Means and How to Dose It.

Delivery

All UK orders are dispatched on a fully tracked service, with delivery expected in 1–2 business days. Please note that orders submitted after 5pm, or on weekends and bank holidays, will be picked up and processed on the next available business day.

For results that last

A branded extract, taken over weeks.

KSM-66 is a root-only ashwagandha extract made to a fixed specification, so one batch matches the next. Our complex pairs it with L-Tryptophan, Lemon Balm, Chamomile and B Vitamins. Vitamin B6 contributes to normal psychological function and to the normal functioning of the nervous system. Ashwagandha is not suitable during pregnancy or breastfeeding. If you take thyroid medication, sedatives or immunosuppressants, speak to your GP before use.

Ingredients & Dosage

Ingredients: Ashwagandha 12:1 Extract (Withania somnifera), L-Tryptophan, Capsule Shell (Hydroxypropylmethylcellulose), Lemon Balm 10:1 Extract (Melissa officinalis), Black Pepper 10:1 Extract (Piper nigrum), Vitamin B3 (Niacin as Nicotinamide), Chamomile 12:1 Extract (Matricaria recutita L.), Anti-Caking Agent: (Magnesium Stearate), Vitamin B6 (Pyridoxine Hydrochloride), Vitamin B1 (Thiamin Hydrochloride), Vitamin B2 (Riboflavin), Vitamin B12 (Cyanocobalamin).

Free From: Artificial Colour, Artificial Flavour, Artificial Sweetener & Preservatives.

Note: Niacin, Thiamin, Vitamin B12 and Vitamin B6 contribute to normal psychological function.

FAQs

Ashwagandha KSM 66 Calm Complex

Ashwagandha KSM 66 Calm Complex

High Strength 5000mg Blend with L-Tryptophan, Lemon Balm & Chamomile

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It's what's inside That Counts

Elevate your health with a comprehensive selection of gummies, powders, and supplements.

  • Ashwagandha KSM-66®
    4,000mg equivalent

    Premium full-spectrum root extract used for centuries in Ayurvedic tradition to support daily calm.

  • L-Tryptophan
    200mg

    An essential amino acid naturally found in turkey, eggs, and dairy products.

  • Lemon Balm
    458mg equivalent

    A fragrant European herb traditionally used in calming infusions for over 2,000 years.

  • Chamomile
    120mg equivalent

    The classic evening botanical used in bedtime teas across cultures for centuries.

  • Vitamin B6
    1.4mg · 100% NRV

    Contributes to normal psychological function and the regulation of hormonal activity.

  • Vitamin B12
    2.5µg · 100% NRV

    Contributes to normal psychological function and the reduction of tiredness and fatigue.

FAQs

Got questions? We’ve got answers.

KSM-66® is a patented, full-spectrum ashwagandha root extract — one of the most clinically studied forms available, standardised for potency and purity.

Each daily serving (2 capsules) provides 333mg of Ashwagandha Extract, equivalent to 4,000mg of ashwagandha root.

L-Tryptophan is an essential amino acid that plays a role in mood and relaxation, making it a natural complement to the calming botanicals in this formula.

The formula contains Vitamins B1, B2, B3, B6, and B12 — all contributing to normal psychological function.

Yes — this formula is 100% vegan and free from artificial colours, flavours, sweeteners, and preservatives.

Take two capsules daily, preferably with a meal, at a consistent time each day for best results.

Results vary individually, but most people notice a difference after several weeks of consistent daily use.

Trusted by over 50,000+ customers

Trust is earned so we prove it

Genuine difference within three weeks.

Genuine difference within three weeks. I'd been struggling to wind down in the evenings and a friend recommended this. Two capsules with dinner and after a while I noticed I wasn't lying awake replaying the day. KSM-66 is the form I'd seen mentioned in research so glad to see it in here. Will reorder.

Sarah M. Leeds · 14 March 2026
Stressful job in IT.

Stressful job in IT, was getting tension headaches by Friday. My wife got me onto these. Doesn't knock you out like a sleeping tablet — just takes the edge off. The lemon balm in the formula was a nice touch, hadn't seen that in a supplement before.

Imran H. Birmingham · 22 February 2026
Calming effect.

60 capsules for 30 days, price per day is fair compared to others I priced up. Calming effect is subtle but real. Not a sleeping pill, more like the volume on stress getting turned down a notch. Knocked off one star because the bottle is bigger than it needs to be.

Margaret A. Manchester · 5 April 2026
Proper calming combo.

Vegan and the capsules are HPMC not gelatine which I appreciated. The B vitamins are a useful add-on, was buying those separately so this consolidated my cupboard. Chamomile and lemon balm together feel like a proper calming combo.

Priya S. Reading · 28 January 2026
 I've slept better since starting these.

Couldn't tell you if it's the ashwagandha or the tryptophan or just placebo, but I've slept better since starting these. Four stars rather than five because the capsules are on the bigger side — easier with a full glass of water than a sip.

David W. Sheffield · 17 March 2026
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gluten free
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plant based
gluten free
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plant based
gluten free
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plant based
gluten free
dairy free
plant based
gluten free
dairy free
plant based
gluten free
dairy free
plant based
gluten free
dairy free
plant based
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gluten free
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gluten free
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gluten free
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