Ingredient analyzer comparison
The best CosDNA alternative
CosDNA is a long-running ingredient-analysis site that rates each ingredient for function, acne and irritation potential, and safety on a 0–5 scale.
What CosDNA does well
- ✓Quick acne and irritant ratings per ingredient
- ✓Large, established database of products and ingredients
- ✓Free and fast for a rough safety read
Where SkinAtlas is different
- →SkinAtlas explains the why behind each ingredient rather than only a numeric score
- →It connects ingredients to your routine and tracked skin outcomes over time
- →A cleaner, mobile-first interface and an AI copilot grounded in your data
CosDNA vs SkinAtlas
| Feature | CosDNA | SkinAtlas |
|---|---|---|
| Ingredient decode (benefits, risks, functions) | ✓ | ✓ |
| Routine conflict + duplicate checks | – | ✓ |
| Daily skin journal + trends | – | ✓ |
| Ties products → ingredients → tracked outcomes | – | ✓ |
| AI copilot with cited answers over your history | – | ✓ |
| Personalized to your own products + skin | – | ✓ |
| Free core features | ✓ | ✓ |
✓ full ~ partial – not offered. Based on publicly available features; tools evolve.
Choose CosDNA if…
- You want a fast comedogenic / irritant score for an ingredient list
- You're used to the CosDNA rating system
Choose SkinAtlas if…
- You want plain-English reasoning, not just a 0–5 number
- You want to track outcomes and get personalized, explainable guidance
Frequently asked questions
Does SkinAtlas rate ingredients for acne or irritation?
SkinAtlas surfaces each ingredient's benefits and risks (including irritation flags) and how it fits your routine, with the reasoning shown — rather than a single opaque score.
Is SkinAtlas free like CosDNA?
Yes, the core analysis and tracking are free; a Pro tier expands the AI copilot.
See what works for your skin — free.
Explore SkinAtlas →