Transparent,
science-backed scoring
We believe in full transparency. Here's exactly how we determine if an ingredient is safe during pregnancy — from data sources to final score.
Scoring Pipeline
Every ingredient goes through a rigorous 5-step analysis pipeline before receiving a safety score.
Step 1
CosIng Import
We start with the EU's official cosmetic ingredient database — over 28,000 ingredients as our comprehensive base layer.
Step 2
ECHA Hazard Matching
Cross-reference with ECHA/REACH regulatory hazard classifications, specifically targeting reproductive toxicity flags (H360, H361, H362).
Step 3
PubChem Enrichment
Pull GHS hazard data and toxicological information from NIH's PubChem database for chemical-level safety insights.
Step 4
PubMed Evidence
Search peer-reviewed medical literature for pregnancy-specific safety studies, teratogenicity data, and reproductive toxicity evidence.
Step 5
Score Computation
Combine all evidence into a single safety score using our severity-blending algorithm: 70% peak severity + 30% average severity.
Four clear risk bands
We use four risk bands to communicate safety clearly. No confusing numbers — just clear levels so you always know where you stand.
No Known Risks
Score: 90–100
No reproductive toxicity flags found in any data source. Considered safe for use during pregnancy and breastfeeding.
Examples: Glycerin, Niacinamide, Hyaluronic Acid
Low Risk
Score: 70–89
Minor flags or limited evidence of concern. Generally considered safe, but some caution may be warranted.
Examples: Some essential oils, Salicylic Acid (low concentration)
Medium Risk
Score: 40–69
Moderate evidence of potential reproductive effects. Regulatory flags like H361 present. Consult your healthcare provider.
Examples: Some UV filters, certain preservatives
High Risk
Score: 0–39
Strong evidence or regulatory classification of reproductive toxicity (H360). Avoid during pregnancy and breastfeeding.
Examples: Retinol, Retinyl Palmitate, certain Phthalates
Built on real data
Every score is backed by data from leading regulatory bodies and scientific institutions.
EU CosIng
RegulatoryThe European Commission's database of cosmetic ingredients. Our base of 28,000+ ingredients.
ECHA / REACH
RegulatoryEuropean Chemicals Agency hazard classifications, including reproductive toxicity statements (H360, H361, H362).
PubChem
ScientificNIH chemical database with GHS hazard classifications and toxicological data.
PubMed
ScientificPeer-reviewed medical literature on pregnancy safety, teratogenicity, and reproductive toxicity.
Clinical guardrails
Our scoring system is designed with built-in safeguards to protect you and your baby.
- ✓
Regulatory hazard classifications (H360, H361) cannot be overridden by the scoring algorithm — they set a minimum risk floor.
- ✓
Product-level scores use severity blending: 70% peak ingredient severity + 30% average severity.
- ✓
We err on the side of caution. Insufficient data defaults to flagging rather than clearing.
- ✓
This is not medical advice. Always consult your healthcare provider about specific products.