Food supplement made in the UK

Electrolytes without the drink.

★★★★★ 4.7 · 39 verified Amazon UK reviews^*

An unflavoured electrolyte formula with Himalayan pink salt, minerals and vitamins — made for training, travel and long days. No powder to mix. No sweeteners.

Take 1–2 capsules with water before exercise, as directed on the label.

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★★★★★ Rated 4.7/5 by Amazon UK customers* · 90 vegan capsules · Made in the UK
*Rating as displayed on Amazon UK on 17 September 2026.

Longevous electrolyte capsules bottle, 90 vegan capsules

Formula at a glance

90 vegan capsules
As directed on the label
Unflavoured
No powder to mix
No sweeteners
Made in the UK in a GMP-compliant facility‡

Each fact links to its detail on this page. ‡Based on manufacturer certification. Full label information available on request.

Inside the capsule

Ingredients and daily amounts

Amounts shown per recommended daily serving. Always read the label before use.

Himalayan Pink Sea Salt 300 mg

The mineral salt base.

Sodium 120 mg

From the salt base.

Chloride 272 mg 34% NRV

From salt and potassium chloride.

Potassium 100 mg 5% NRV

As potassium chloride.

Magnesium 30 mg 8% NRV

As magnesium citrate.

Calcium 30 mg 4% NRV

As calcium citrate.

Zinc 1 mg 10% NRV

As zinc citrate.

Vitamin D 2.5 µg 50% NRV

Vegan cholecalciferol (D3).

Vitamin B6 1 mg 71% NRV

As pyridoxal 5-phosphate.

Food supplements should not be used as a substitute for a varied, balanced diet and healthy lifestyle.

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What the nutrients do

Authorised nutrition claims

Only two nutrients in this formula are present at levels that permit a health claim under GB rules. These are their official wordings — nothing added, nothing implied.

Muscle function

Vitamin D contributes to the maintenance of normal muscle function.^◊

Immune function

Vitamin D contributes to the normal function of the immune system.^◊

Tiredness & fatigue

Vitamin B6 contributes to the reduction of tiredness and fatigue.^◊

Energy metabolism

Vitamin B6 contributes to normal energy-yielding metabolism.^◊

Nervous system

Vitamin B6 contributes to normal functioning of the nervous system.^◊

Why only these two

A nutrient must be present at 15% or more of its Nutrient Reference Value before any claim can be made. In this formula only vitamin D (50% NRV) and vitamin B6 (71% NRV) reach that level.

^◊ Wordings taken verbatim from the GB Nutrition and Health Claims Register. Food supplements should not be used as a substitute for a varied, balanced diet and healthy lifestyle.

Label information

Full ingredients and label information

See exactly what is in one capsule, including ingredient amounts and NRVs. Everything below is transcribed from the approved product label.

Directions

As a food supplement take 1-2 capsules per day with 225 ml of water prior to exercise and 1 capsule with 175ml water every 30 minutes during physical activity. Do not exceed more than 10 capsules every 24 hours.

Nutritional information

One capsule typically contains:

Nutrient	Amount	NRV%*
Vitamin D	2.5mcg (100iu)	50%
Vitamin B6	1mg	71%
Himalayan Pink Sea Salt	300mg	–
Sodium	120mg	5%
Chloride	272mg	34%
Potassium	100mg	5%
Calcium	30mg	4%
Magnesium	30mg	8%
Zinc	1mg	10%

*NRV = Nutrient Reference Value. – = NRV not established.

Ingredients

Himalayan Pink Sea Salt, Potassium Chloride, Capsule Shell (Hydroxypropylmethylcellulose), Magnesium Citrate, Calcium Citrate, Microcrystalline Cellulose, Natural Rice Extract (Numag), Zinc Citrate, Vitamin B6 (Pyridoxal 5 Phosphate), Vitamin D3 (Vegan Cholecalciferol).

Caution

Do not exceed the recommended dose. Do not take if pregnant, breastfeeding or taking prescription medication. If you have a medical condition, consult your GP prior to taking any supplements. Not suitable for persons under the age of 18. Keep out of reach of children. Food supplements should not be used as a substitute for a varied and balanced diet and a healthy lifestyle.

Storage

Store in a cool dry place. Best before end and batch number see base.

Manufactured for

Manufactured in UK for Longevous LTD, 5 Brayford Square, London E1 0SG.

Last checked against the current product label: 18 September 2026.

Other ingredients

What else is in the capsule

The active ingredients and their amounts are listed above. These are the remaining components: the shell, and the two agents needed to fill a capsule.

Capsule shell

Hydroxypropylmethylcellulose. A plant-based shell rather than gelatine, which is what makes the capsule suitable for vegans.

Natural Rice Extract

Listed on the label as Numag. A flow agent, used in place of magnesium stearate.

Microcrystalline Cellulose

A plant-derived bulking agent, used to fill the capsule to a consistent volume.

Where it is made

Manufactured in the United Kingdom in a GMP-compliant facility, for Longevous LTD, 5 Brayford Square, London E1 0SG. The batch number and best-before date are printed on the base of every bottle.

What “GMP-compliant” actually means: Good Manufacturing Practice is the set of rules a facility works to — documented procedures, traceable raw materials, controlled and recorded production conditions, and a retained sample of every batch. It describes how the product is made. It is not a test of the finished capsule, and we do not present it as one.

All listed active ingredients and amounts are shown per capsule.

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Why this format?

Capsules, powders and fizzy tablets

Longevous is an unflavoured electrolyte capsule. Take it with water — no powder to measure or mix.

As directed on the label

1–2 capsules with water before exercise.

Take with water

No powder to measure or mix.

Wherever the day goes

A portable bottle for your desk, gym bag or travel bag.

Swipe to compare →

Feature	Longevous capsules	Powders	Fizzy tablets
Requires mixing	No	Often	No
Unflavoured	Yes	Varies	Varies
Portable format	Yes	Varies	Varies
Labelled serving	Yes	Varies by product	Varies by product

Available on Amazon UK — view the listing.

From the founder

Why Longevous exists

Longevous started with a simple frustration: every electrolyte product I tried was a flavoured drink mix built for someone else. I wanted a simple, clean format that fits real life — training, travel, long days.

So I made it myself: UK-manufactured capsules in a GMP-compliant facility, built on Himalayan Pink Sea Salt, minerals and vitamins. No sweeteners, no powder to mix. Just capsules, with water, taken as the label directs.

We show the ingredient amounts clearly and keep the formula straightforward. A small company doing a simple product properly.

JonathanFounder, Longevous

Questions

Questions about Longevous electrolyte capsules

How do I take Longevous?

The label directions read: “As a food supplement take 1-2 capsules per day with 225 ml of water prior to exercise and 1 capsule with 175ml water every 30 minutes during physical activity. Do not exceed more than 10 capsules every 24 hours.”

Why capsules instead of powder?

Capsules are a convenient, unflavoured format that can be taken with water, with no powder to mix.

Is Longevous flavoured?

No. It is an unflavoured capsule with no sweeteners.

How long does one bottle last?

One bottle contains 90 capsules. How long that lasts depends on how you use it — see the directions on the label.

Why is it unflavoured?

Flavour means sweeteners, acids or masking agents. A capsule is swallowed rather than tasted, so none of that is needed — which is why the ingredients list is as short as it is.

Why capsules if I already use an electrolyte powder?

It is a format choice, not a claim of superiority. A powder needs water, a vessel and mixing. A capsule needs water. If you already enjoy your powder, keep using it.

Who makes it?

It is manufactured in the United Kingdom in a GMP-compliant facility, for Longevous LTD, 5 Brayford Square, London E1 0SG. The batch number and best-before date are printed on the base of every bottle.

Is the capsule suitable for vegans?

Yes. The shell is hydroxypropylmethylcellulose, a plant-based alternative to gelatine, and the vitamin D3 is a vegan cholecalciferol.

Why do you only make claims about vitamin D and B6?

Under GB rules a nutrient has to be present at 15% or more of its Nutrient Reference Value before any health claim can be made about it. In this formula only vitamin D (50% NRV) and vitamin B6 (71% NRV) reach that level, so those are the only two we say anything about.