Water-Balance Supplement Ingredients Explained: Magnesium, Vitamin B6 and Botanicals

July 16, 2026|Barry Lees

Dandelion, juniper, nettle, magnesium and vitamin B6 used in water-balance supplement labels

Short answer: magnesium and vitamin B6 can carry specific authorised GB health claims when a product meets the conditions of use. Botanicals such as dandelion, juniper and nettle should be compared by the plant part, form and declared quantity—not treated as proven remedies for oedema.

Commercial disclosure

We sell AQUALIBRIUM, which contains the ingredients discussed below. This guide separates authorised nutrient claims, factual label information and registered-medicine indications.

Key ingredients at a glance

Ingredient	What the label should show	Claim position in this guide
Magnesium	Amount, % NRV and mineral compound	May claim it contributes to normal electrolyte balance when conditions are met
Vitamin B6	Amount, % NRV and vitamin form	May claim it contributes to the regulation of hormonal activity when conditions are met
Dandelion	Leaf or root; powder or extract; amount/equivalent	Described factually here; not credited with treating water retention
Juniper	Berry, form and extract equivalent where relevant	Described factually here
Nettle, parsley, watercress, alfalfa	Species/plant part where useful and individual amount	Described as formula ingredients, not as treatments
Celery seed	Individual amount plus clear celery allergen declaration	Described factually; allergen status is essential
Kelp	Amount and, ideally, declared iodine contribution where relevant	Do not assume a predictable iodine dose without a declaration

What do the authorised claims actually mean?

Magnesium contributes to normal electrolyte balance. This is an authorised nutrient function. It does not mean that every magnesium product treats swelling or works as a diuretic.

Vitamin B6 contributes to the regulation of hormonal activity. This is also an authorised claim. It does not authorise a promise to relieve premenstrual water retention.

Only authorised claims in the Great Britain Nutrition and Health Claims Register may be used in commercial communications, and the product must meet the claim’s conditions of use.

Why do plant part and form matter?

“Dandelion 300mg” is incomplete if you want to compare products. Dandelion leaf and root are different materials. A powder and an extract are also different forms.

An extract may be labelled by:

the actual extract weight;
an extraction ratio; or
the amount of starting plant material to which the extract is equivalent.

Do not compare an extract equivalent directly with an ordinary powder weight as though they were the same measurement.

Food supplement or registered herbal medicine?

This distinction is important. A food supplement can use authorised nutrition and health claims but cannot claim to treat disease or medical symptoms. A product with a Traditional Herbal Registration (THR) is a medicine and may carry its registered indication, based on traditional use.

For example, HRI Water Balance is a registered traditional herbal medicinal product with an indication for mild water retention based on traditional use. That does not turn every dandelion food supplement into a medicine or allow other sellers to borrow its wording.

How is AQUALIBRIUM declared?

Our current serving of two capsules provides:

magnesium 66mg (18% NRV);
vitamin B6 10mg (714% NRV);
dandelion root extract equivalent to 320mg;
alfalfa 170mg;
juniper berry extract equivalent to 100mg; and
celery seed, kelp, nettle leaf, parsley leaf, horseradish and watercress at 80mg each.

It contains celery. Follow the current label directions and warnings; do not exceed the recommended intake.