How to Spot Low Quality Supplements in 30 Seconds (UK Guide)
In a market overflowing with promises of “clean”, “pure” and “high-quality” supplements, knowing what to trust can feel like a minefield. Whether you’re looking for something simple like L-Theanine for calm and focus, or a multivitamin for general wellbeing, not all supplements are created equal.
Here’s how to spot a low-quality supplement in 30 seconds or less, so you can make sure you’re putting only the good stuff in your body.
1. Check for Third-Party Testing (Always)
If there’s one rule you follow, make it this one: Only trust third-party tested supplements.
Third-party testing means an independent, accredited lab (not the brand itself) verifies that what’s inside the product matches what’s on the label and that it’s free from harmful contaminants like heavy metals, bacteria and unnecessary additives.
The best brands perform third-party testing on every batch because ingredient quality can vary from one production run to the next. Even small differences in raw materials, suppliers, or manufacturing conditions can affect purity, potency and safety. By testing each batch individually, brands can guarantee consistent quality, confirm there’s nothing harmful or unexpected inside, and give customers complete confidence in what they’re taking.
A high-quality brand will proudly show their third-party testing lab results on their website. If a brand won’t share this information, it’s a major red flag.
2. Avoid Overloaded Ingredient Lists
Quality supplements are simple. If you need a magnifying glass to read the label, chances are you’re paying for fillers rather than nutrients.
Watch out for ingredients like:
- Magnesium stearate
- Titanium dioxide
- Artificial colours or flavours
- Silicon dioxide
These additives don’t add value, they just make production cheaper. A pure supplement should contain what it claims, with no extras.
For example, Everyday Supplements’ L-Theanine uses no fillers or additives - just clean, effective and pure ingredients.
3. Look at the Label (It Tells You More Than You Think)
Legitimate supplement brands are transparent about what’s inside. Look for:
- Full ingredient disclosure (not “proprietary blends”)
- Exact dosages listed clearly
- Third-party testing for every batch
The Bottom Line
If you only remember one thing, it’s this: trust transparency. A supplement brand worth your time won’t make you dig for proof.
In just 30 seconds, you can spot quality by checking for third-party testing, clean ingredient lists, clear labelling and honest branding.
Choosing well-tested, pure supplements like Everyday Supplements’ L-Theanine means you’re not just buying calm and focus, you’re buying peace of mind.
Ready to Experience What Clean, Third-Party Tested Supplements Should Feel Like?
Explore Everyday Supplements L-Theanine. At Everyday Supplements, every batch of our L-Theanine is third-party tested in ISO 17025 accredited labs for purity, potency, and safety. You can find our third-party lab certificates here.