Skin Bliss: What Is the Quality Score?
How the Skin Bliss Quality Score works: a four-tier rating built from ingredient safety, ingredient value, and formulation design choices
Is this product well formulated? That's the question the Quality Score in Skin Bliss is built to answer.
A product can have the right actives on paper and still cut corners in the formula: dilute them too far, pair them with fillers, skip the stabilizers that make them actually work. The Quality Score is our attempt to reflect the overall design of a product, not just what's printed on the ingredient list.
The four tiers
We use a four-tier system so the rating is easy to read at a glance.
| Tier | What it means |
|---|---|
| Lowest tier | Contains ingredients with meaningful safety concerns, including ones banned or restricted in the European Union. |
| Normal quality | Meets acceptable formulation standards. Nothing particularly notable, nothing particularly worrying. |
| Good quality | Thoughtfully formulated, with multiple beneficial ingredients working together. |
| Top quality | The top roughly 5% of products in our catalog. Exceptionally well-formulated, with intentional design choices. |
The tiers are absolute in one sense (the lowest tier means something concrete about ingredient safety) and relative in another (Top quality is defined against the rest of the catalog).
What the score actually looks at
The Quality Score is built from three layers.
1. Safety and regulation
Products lose ground if they contain:
- Ingredients banned or restricted under EU cosmetic regulation (Annex II and Annex III of the EU Cosmetics Regulation).
- Ingredients with well-established scientific concerns, such as compounds with reasonable evidence as potential endocrine disruptors.
This is the "do no harm" floor. It's based on regulatory lists and peer-reviewed literature, not trends.
2. Ingredient value
Are the ingredients in the formula actually doing something? We look at whether the formulation goes beyond basics, using multifunctional or well-chosen actives instead of filling half the bottle with low-value material.
For example, a product built on mineral oil is still functional, but it could typically deliver more value with a smarter lipid blend. The score rewards products that use advanced actives or synergistic ingredient combinations to deliver real benefit.
A formula with five highly effective ingredients can easily score higher than one listing fifty, most of which do very little.
3. Formulation design
Beyond what's in the product, we look at how it's put together:
- Are actives paired in ways that support each other?
- Is the ingredient list bloated with cheap fillers that push the good stuff further down?
- Are stabilizers or buffers present where the active chemistry needs them?
Products that show intention and purpose in their design score higher. Products that look like they were thrown together to hit a price point score lower.
Lifestyle filters are separate
Some ingredients you might want to avoid for personal reasons, like petroleum derivatives, silicones, or specific preservative families, are not flagged by the Quality Score.
That's intentional. A product can be well-formulated, stable, and effective while containing silicones or mineral oil, and marking it down for that would punish good formulation on grounds that have nothing to do with quality. What we do instead is give you lifestyle filters, which let you personally exclude ingredient groups from your results without bending the underlying quality math.
You decide which ingredients cross a line for you. We keep the quality rating separate so you can see both sides.
Recap
The Quality Score tells you how smart, safe, and beneficial a formulation is on its own terms. It uses a four-tier system built from ingredient safety, ingredient value, and formulation design. It does not factor in trends, marketing, or lifestyle preferences, because those belong in different layers of the app.
Read it alongside the Efficiency Score and your personal Skin Match, and you get a full picture of the product: is it well made, is it potent, and is it right for you? All three answers matter, and Skin Bliss gives you each one separately so you can decide for yourself what earns a place on your shelf.
