(2.5 min read)
What to Know Before Buying Supplements: Dosage, Purity, and Quality Tips
Supplements can play a valuable role in supporting overall wellness and filling nutritional gaps that may arise from age, lifestyle, or dietary choices.
With so many options available to fit different needs and budgets, it can be difficult to separate the high-quality products from those that fall short. Not every supplement is responsibly made or accurately labelled, which makes choosing wisely all the more important.
Why Dosage Matters
Supplements contain what’s known as an active ingredient—the component responsible for delivering the intended health benefit. Alongside this, many products also include excipients or fillers. These don’t add nutrients, but they play important roles in stability, absorption, and manufacturing.
An effective supplement must contain the right amount of its active ingredient. Too little may have no noticeable effect, while too much could be unsafe.
How do you know if the dosage is right?
Read the label carefully. Trustworthy brands will clearly state the active ingredient, its proper name, and the amount per serving.
You can cross-check a supplement label against online resources that provide recommended dosages for a supplement. Look for dosage ranges from credible websites that cite clinical studies or recognised health authorities, and ensure the information is authored or reviewed by qualified professionals.
Genologix follows approved clinical and regulatory SAHPRA guidelines on individual product dosages, ensuring that you receive daily dosages that have been third party proven to be both safe, and effective. Many supplement companies will produce products that have ineffective, small dosages, to save money. Always do your own research when choosing a supplement.
Purity and Quality: Choosing Supplements You Can Trust
Purity means a supplement contains exactly what the label says—without hidden ingredients or harmful contaminants. If raw materials aren’t carefully sourced and processed from reliable manufacturers, impurities can slip into the final product. These undeclared substances may not only reduce effectiveness but could also interact with other supplements or medications, or even pose health risks.
Trustworthy supplement brands put strict quality assurance measures and quality controls in place. They operate under a quality management system and manufacture according to recognised standards. Look for certifications such as:
- ISO 9001 – Confirms the manufacturer follows internationally recognised quality management practices.
- ISO 22000 – Demonstrates compliance with global food safety systems.
- GMP (Good Manufacturing Practice) – Ensures products are made under controlled, standardised conditions for safety and consistency.
If a brand is vague about testing, sourcing, or labelling, consider it a red flag. Purity and quality should always be transparent.
At Genologix, we are ISO 9001:2015 and ISO 22000:2018 certified, and we adhere to Good Manufacturing Practice.
Every ingredient we use is supported by a certificate of analysis to confirm its source, and purity.
Making Informed Choices
When choosing a supplement, ask yourself:
- Are the ingredients and their exact amounts clearly listed on the label?
- Does the brand follow recognised manufacturing standards (e.g., ISO, GMP)?
- Are dosage guidelines and intended use explained in clear, simple language?
Keeping these questions in mind helps you separate trustworthy products from those that may fall short, empowering you to make confident, informed decisions about supplements for everyday wellness.
Disclaimer
This content is for informational purposes only and is not intended to replace professional medical advice, diagnosis, or treatment. Always seek guidance from your healthcare professional before starting supplements or making significant lifestyle changes. Genologix and its contributors do not accept liability for any outcomes related to the use of this information.
Kimica Maniraj (B.Pharm)
The Genologix Team

