Colloidal Zinc: Benefits, Food Sources & 20 ppm Guide

Understand zinc's nutritional role, food sources and daily needs, with a practical guide to our 20 ppm colloidal zinc, label reading, storage and mineral balance.

Published 12 September 2021 · 5 min read · Crystal Health & Beauty Editorial Team

Silver-grey metal specimen beside water, pumpkin seeds and oats

Zinc is an essential mineral with roles in everyday nutrition, while colloidal zinc describes a particular type of liquid preparation. If you are comparing products or reading about zinc benefits, it helps to keep those two ideas separate.

This guide covers zinc's nutritional roles, food sources and daily requirements, then explains our current colloidal zinc ingredients, the meaning of 20 ppm and the questions worth asking before adding a mineral product to your routine.

What is colloidal zinc?

A colloidal preparation contains very small particles dispersed in a liquid. Our colloidal zinc is made using zinc and steam-distilled water, without added salts or preservatives.

The term does not mean that the product comes from clay or shale, and it does not establish superior absorption. It describes the preparation. To understand a particular bottle, you still need its ingredient list, concentration and directions.

Different liquid zinc products may have different formulations. Do not transfer instructions from a tablet, lozenge, spray or another liquid simply because all of them mention zinc.

What does zinc do in the body?

Zinc contributes to normal immune function, DNA and protein production, growth, wound healing and the sense of taste. These established nutrient roles explain why adequate intake matters.

Within a holistic routine, zinc can be considered alongside food variety, other minerals and your individual circumstances. The starting point is understanding your nourishment as a whole.

A whole-person approach to mineral nutrition

Begin with your normal week: the meals you prepare, the food groups you include and anything you regularly avoid. Consider your existing mineral products at the same time so the full routine is clear.

For some people, the practical appeal of a liquid is the format itself. Compare the ingredients and serving information, and choose according to your individual needs rather than assuming every zinc preparation is the same.

Zinc food sources and daily requirements

Zinc is found in meat, shellfish, dairy foods, eggs, beans, nuts and wholegrains. Fortified breakfast cereals can also contribute. Plant foods remain useful sources, although phytates in some grains and pulses can reduce absorption.

Individual requirements depend on age and circumstances. Keep dietary intake separate from product serving information, and follow the directions for the particular preparation you choose.

Start by looking at your usual pattern of eating. A varied diet offers protein, fibre and other nutrients alongside zinc. If your food choices are limited, a dietitian can help assess the whole pattern rather than focusing on a single mineral.

Our nutritional deficiencies guide explains why food sources and proper assessment are more useful than diagnosing a deficiency from a symptom checklist.

Could I be low in zinc?

Zinc deficiency can affect taste, wound healing and appetite, among other functions. Absorption problems, some digestive conditions and restricted diets can increase the chance of inadequate intake. However, these symptoms have many possible causes.

A persistent symptom deserves assessment rather than repeated changes to supplements. It may help to bring a record of your meals, medicines and current products to an appointment. Include how long a symptom has been present and whether anything else changed at the same time.

The purpose of that conversation is to identify what is happening and what, if anything, needs correcting. It is not to assume that every instance of tiredness, hair shedding or a skin concern points to zinc.

What does 20 ppm mean?

PPM stands for parts per million. It describes concentration: how much of one substance is present relative to the preparation as a whole. It is a different measurement from the volume printed on the front of a bottle.

Our current listing specifies 20 ppm colloidal zinc. Both 500 ml and 1 litre are bottle sizes. Choosing the larger bottle does not, by itself, mean choosing a stronger concentration.

When comparing products, keep these four details separate:

Concentration: the stated strength of the preparation.
Bottle volume: the amount of liquid supplied.
Serving volume: the amount described in the product directions, where applicable.
Mineral content per serving: the zinc amount supplied by that serving.

A ppm number on its own is not a personal dose recommendation. Nor does it tell you that a product will be better absorbed or have a stronger health effect. Ask for clarification if a label leaves you unable to understand the intended use or amount supplied.

Our colloidal zinc: ingredients, use and storage

The current Crystal Health & Beauty colloidal zinc listing provides the following details:

Concentration: 20 ppm.
Ingredients: steam-distilled water and zinc.
Added ingredients: no added salts or preservatives.
Bottle sizes: 500 ml and 1 litre.
Directions: follow the instructions printed on the bottle label.
Storage: keep securely closed and away from direct sunlight; do not refrigerate or freeze; keep out of children's reach.

Use the label supplied with your bottle as the starting point. If the online description and the bottle appear different, check with us before using it. Do not replace unclear instructions with a suggested dose from an unrelated blog, marketplace listing or another brand.

View colloidal zinc sizes, label information and availability →

If you are comparing ingredients across the range, browse our colloidal products. Each mineral has its own product details; the bottles should not be treated as interchangeable.

Zinc, copper balance and medicines

Zinc and copper are connected in mineral nutrition: excessive zinc intake can interfere with copper absorption. Review what you already use before adding another product, including zinc contained in multivitamins and combination formulas.

Zinc can also interact with some antibiotics and penicillamine. Ask your pharmacist about your medicines before adding it; do not adjust prescribed treatment yourself. Review combined products as well as standalone zinc so that overlapping ingredients are not missed.

Our copper guide explains copper's nutritional role and why adding another mineral without assessing the whole routine is not a reliable way to manage balance.

Frequently asked questions

Is the current product 20 ppm or 40 ppm?

The current online product listing states 20 ppm. This guide has been updated to reflect it. Check your bottle label and contact us if you need help reconciling different information.

Is colloidal zinc proven to be more effective than other zinc forms?

The word “colloidal” is not evidence of greater effectiveness. A meaningful comparison would need suitable research on the specific formulations and amounts being compared.

Does everyone need a zinc supplement?

No. The fact that zinc is essential does not mean everyone needs an additional product. Consider diet, individual needs and any professional advice you have received.

Can I use it as a skincare treatment?

Do not assume a liquid mineral product is intended for the skin. Follow its labelled use. A topical zinc formulation and a colloidal liquid are not automatically substitutes for one another.

Can the daily requirement be converted into a dose from this article?

No. The nutritional figures provide context, not product directions. Use the bottle's instructions and obtain clarification where needed, especially for children or during pregnancy and breastfeeding.

What should I compare before buying?

Compare the full ingredients, concentration, clear directions, bottle size and storage requirements. Seek evidence for any claimed benefit, and make sure information about a different formulation has not been presented as proof for the product you are considering.