openFDA Cosmetics

How to Use This API

1. Recent Cosmetic Adverse Events

https://api.fda.gov/cosmetics/event.json?limit=5

Returns the most recently submitted cosmetic adverse event reports including product details and reaction descriptions.

2. Search by Brand Name

https://api.fda.gov/cosmetics/event.json?search=products.brand_name:Neutrogena

Find all adverse events associated with a specific brand of cosmetic products.

3. Search by Reaction Type

https://api.fda.gov/cosmetics/event.json?search=reactions:rash

Filter events by specific adverse reactions like rash, itching, swelling, hives, or hair loss.

4. JavaScript — Brand Safety Checker

async function checkCosmeticBrand(brand) {
  const resp = await fetch(
    `https://api.fda.gov/cosmetics/event.json` +
    `?search=products.brand_name:${encodeURIComponent(brand)}&limit=30`
  );
  const data = await resp.json();
  if (!data.results) return { total: 0, topReactions: [] };
  
  const reactionCounts = {};
  data.results.forEach(r => {
    (r.reactions || []).forEach(rec => {
      const reaction = rec.reaction || 'unknown';
      reactionCounts[reaction] = (reactionCounts[reaction] || 0) + 1;
    });
  });
  
  const sorted = Object.entries(reactionCounts)
    .sort((a, b) => b[1] - a[1])
    .slice(0, 5);
  
  return { total: data.meta.results.total, topReactions: sorted };
}

checkCosmeticBrand('L\'Oreal').then(console.log);

5. Python — Count by Product Type

import requests

def product_type_breakdown():
    resp = requests.get(
        'https://api.fda.gov/cosmetics/event.json',
        params={'count': 'products.brand_name.exact', 'limit': 20}
    )
    data = resp.json()
    print("Brands with most cosmetic adverse events:")
    for item in data.get('results', []):
        print(f"  {item['term']}: {item['count']} reports")

product_type_breakdown()