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Essential Oils

Concentrated plant aromatics — a class label, not a single ingredient. Individual oils have very different safety profiles.

What it does

Essential oils are highly concentrated volatile plant compounds. The class spans hundreds of species — some are gentle (chamomile, true lavender) and some are reproductive-system actives or potent allergens (clary sage, tea tree, neem, citrus oils). Drop treats each species as its own ingredient with its own contraindications; see the per-species entries (tea_tree_oil, clary_sage_oil, neem_extract, lavender_oil, bergamot_oil, lemon_oil, etc.) for the actual safety calls. The class label exists for browsing / cross-referencing only — the engine does not enforce contraindications at the class level.

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How Drop works · 4 minNatural Ingredients Can Still Irritate Skin — and Often Do'Natural' tells you almost nothing about how skin tolerates an ingredient. Here is which natural ingredients are common irritants and why labels mislead.

Browse all 668 ingredients — grouped by what they do, each with whatever evidence we can cite.

This page is public so a shared ingredient card always has its sources behind it — and so you can check them without an account.
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