MyPure Journal · Ingredients
1 July 2026
Why a “High Risk” Ingredient Score Doesn’t Mean What You Think
Ingredient rating apps are a great way to get curious about what’s in your skincare. But they score one ingredient at a time — the same way a supermarket app might flag bread for containing salt, or coffee for containing caffeine. Score enough ingredients like that and almost nothing passes. Here’s what actually determines whether a product is safe, and why it isn’t a single red flag.
“The problem isn’t the ingredient. It’s judging it without considering the amount, the form it’s in, and how the product is actually used.”
The Short Answer
Use them as a starting point, not a final verdict. Rating apps are useful for discovering new ingredients, but they judge substances in isolation — without considering concentration, chemical form, or how a product is actually used. Every cosmetic sold in the UK and EU already undergoes a professional safety assessment that accounts for all of this.
An Ingredient Is Not the Whole Story
Seeing an ingredient flagged as “high risk” doesn’t necessarily mean the finished product is unsafe.
It’s a bit like refusing to eat bread because salt can be harmful in large amounts. Bread isn’t considered unhealthy simply because it contains salt — what matters is how much salt it contains and how much bread you eat.
Cosmetic ingredients work in exactly the same way. To understand whether an ingredient is safe, you need to know:
- How much is used
- What chemical form it is in
- Whether the product is washed off or left on the skin
- How it interacts with the other ingredients
Without that context, it’s impossible to judge the safety of the finished product.
Almost Anything Can Be Harmful — In the Wrong Amount
Almost every substance can be harmful under the wrong conditions — including water, salt and oxygen.
The important question isn’t “Can this ingredient ever cause harm?” It’s “Can this ingredient cause harm in this product, at this concentration, when used as intended?” That is the question cosmetic safety assessors are trained to answer.
The Bottom Line
“A red flag on an app is not the same as a red flag from a scientist.”
Rating apps can spark curiosity about what’s in your skincare — and that’s a good thing. But the finished product, not a single flagged ingredient, is what has been safety assessed. Context is everything.
Our View at MyPure
We understand why rating apps are popular. Wanting to know what’s in your skincare is a good instinct. But an ingredient flagged in isolation doesn’t tell you whether the finished product is safe to use.
Every product we stock is checked against the MyPure Promise. It has already been through a proper safety assessment that looks at the whole formula — concentration, exposure and interaction with other ingredients included. That’s a far more meaningful measure of safety than a single ingredient score.
Context matters more than a single red flag.
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View all →Frequently Asked Questions
Are ingredient rating apps accurate?
They accurately list which ingredients are present, but many score ingredients individually without accounting for concentration or how the product is used, which is essential context for judging real-world safety.
Does a “high risk” ingredient rating mean a product is unsafe?
No. A rating flags a hazard the ingredient could theoretically pose in isolation — not the actual risk of the finished, formulated product.
Who actually checks that cosmetics are safe?
In the UK and EU, every cosmetic product must undergo a professional safety assessment before it can be sold, carried out by a qualified safety assessor who reviews the complete formula.
Should I stop using rating apps altogether?
No — they’re a good starting point for research. Just don’t let a single flagged ingredient override the professional safety assessment every cosmetic sold in the UK and EU has already passed.