How to read a supplement label: a simple step-by-step guide
A supplement label tells you what the product is for, what is in it, how much to take and how to store it. Reading it in the right order takes about two minutes. This guide walks you through every part of a pack and shows how to confirm that the product you ordered is the one that arrived.
Key takeaways
- Start with the product name and the purpose stated on the front of the pack.
- Look for every ingredient by name and the amount per capsule or serving.
- Check the serving size, the number of capsules and how long the pack lasts.
- Note allergens, storage advice, batch number and expiry date.
- Ask your GP or pharmacist about interactions, and keep taking prescribed medicine.
What should I look at first on a supplement pack?
Begin with the front of the pack. It carries the product name, the type of product, for example dietary supplement, and a short statement of purpose such as blood pressure support or hair growth support.
The front is the headline. The details sit on the back or side, where you will find the ingredient list, the directions and the small print. Read both before you decide.
Take a moment to match the front and the back. The purpose on the front should make sense for the ingredients listed on the back.
How do I read the ingredient list and amounts?
A clear label names each active ingredient and gives an amount per capsule or per serving, in milligrams (mg), micrograms (mcg) or international units (IU). Those amounts let you compare one product with another.
Ingredients are usually listed in descending order by weight in the formula. Plant ingredients often carry the plant part and the type of extract, for instance a leaf, root or berry extract.
Many labels also include a section for other ingredients, such as the capsule shell, fillers and anti-caking agents. These are not active ingredients, but they matter if you have an allergy or a dietary preference.
A pack that names each ingredient and the amount per capsule makes it easy to compare, to ask your pharmacist informed questions and to keep your own record.
What do serving size and capsule count mean?
The serving size is the amount the label suggests per day or per dose, for example one capsule with a meal. The capsule count tells you how many are in the pack. Divide one by the other to see how many days the pack lasts.
For example, a pack of 30 capsules taken at one capsule a day lasts about 30 days. A pack of 60 taken the same way lasts about 60 days. Use this to compare value between products on a like-for-like basis.
Some products are designed as a course, with a break between packs. If that applies, the directions will say so. Follow the pack instructions, and ask the pharmacist or the adviser on the order call if you are unsure.
Where do I find allergens, warnings and storage advice?
Allergen information is normally on the back, sometimes in bold within the ingredient list or in a separate line. Check it carefully if you are sensitive to soy, gluten, shellfish, nuts, dairy or any other common allergen.
Look for the usual cautions printed on supplement packs: keep out of reach of children, do not exceed the stated serving, and speak to your health professional if you are pregnant, breastfeeding or on medicine.
Storage advice is typically to keep the pack in a cool, dry place out of direct sunlight, with the lid closed tightly. In a hot Durban summer, a kitchen cupboard away from the stove is a better home than a car glove box.
What are the batch number and expiry date for?
The batch number identifies the production run of your pack. The expiry date, shown as a best-before or use-by date, is the point up to which the product is expected to stay in good condition when stored as directed.
They are usually printed or embossed on the bottle, box or blister strip, so you may need to turn the pack around to find them. Note them down if you like, so you can quote them if you ever contact the seller.
If a pack is past its date, set it aside and speak to the seller or your pharmacist.
How do I read the claims on the pack?
Pack claims describe purpose in soft, general language, for example supports healthy blood pressure, helps maintain healthy hair or supports male vitality. These phrases tell you what the formula is designed for.
Pair the claim with the ingredient list. If a pack speaks about vessel health, look for ingredients associated with it, such as vitamin C or garlic. If it speaks about hair, look for biotin and zinc. That match helps you judge whether a product fits your goal.
A supplement is a dietary supplement, not a medicine. It sits beside a healthy routine and your prescribed treatment, and your GP remains your first point of contact for symptoms.
What should I know about interactions with my medicines?
Some ingredients can interact with medicines. Garlic, for example, deserves a conversation if you take blood thinners, and some plant extracts deserve a conversation if you take diabetes or hormone-related medicines.
The easiest approach is to take the pack, or a photo of the label, to your GP or pharmacist and ask whether it suits your routine. List every supplement, vitamin and traditional remedy when you get a new prescription.
Keep taking prescribed medicine exactly as directed, and speak to your GP before you stop or change anything.
How do I know the product I ordered is the one that arrived?
Check three things when your parcel arrives: the product name, the pack and the details on the label. Compare them with what you saw on the product page and what the adviser confirmed on the phone, including the product, the delivery address and the total.
If anything is unclear, ask the courier or the adviser before you pay. The adviser who phoned you can confirm the details of your order, and the order line can answer questions about your delivery.
Keep the receipt or delivery slip, the courier's details and a note of the batch number and expiry date. These make it quick to sort out any question later.
- Does the product name on the pack match your order?
- Does the pack look like the one on the product page?
- Are the ingredients, serving size and capsule count printed on the label?
- Are the batch number and expiry date visible?
- Does the total match what the adviser confirmed on the call?
Frequently asked questions
What should be on a supplement label?
A good label shows the product name and purpose, each ingredient with its amount, the serving size, the capsule count, directions, allergen information, storage advice and the batch and expiry details.
What does mg or mcg mean on a supplement label?
Mg is milligrams and mcg is micrograms, both units of weight. One milligram equals 1,000 micrograms. Some vitamins are shown in international units (IU). The label states the amount per capsule or per serving.
How do I know how long a pack will last?
Divide the capsule count by the number of capsules you take each day. A pack of 30 capsules at one capsule daily lasts about 30 days. Follow the directions on your own pack.
Where is the expiry date on a supplement?
It is usually printed or embossed on the bottle, box or blister strip, often next to the batch number. You may need to turn the pack around or look at the base.
Can I take a supplement with my regular medicine?
Ask your GP or pharmacist first. Show them the label so they can check the ingredients against your medicines. Keep taking prescribed medicine exactly as directed.
What should I do if I have a question about my order?
Ask the adviser during the confirmation call, or the courier on delivery. Keep your receipt or delivery slip and the courier's details. You can also reach Mzansi Hub through the contact page.
