Garlic

Allium sativum L.

Chemotype: allyl sulfide-rich

alliaceousgarlicpungentspicysulfury

PLANT PART: bulb (clove)
EXTRACTION: steam distillation
AROMA NOTE: top

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What’s inside this oil?

Constituents are the natural chemicals that give an oil its character. See the main ones, learn what they do, and explore differences between batches.

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FOLLOW YOUR SENSES

Aroma & character

A closer look at this oil's scent, strength, and staying power.

alliaceousgarlicpungentspicysulfury

Aroma intensity: 60 / 100

Soft & subtleBold & expressive

Note layer: top

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A LITTLE CARE GOES A LONG WAY

Using it thoughtfully

Read the full safety context before bringing this oil into your routine.

Cited dermal maximum · leave-on: 0.1%
Phototoxicity: Not flagged in this profile
Oxidation risk: medium

A cited maximum is a limit, not a suggested dilution. Missing restrictions do not establish safety.

No furocoumarin-related phototoxic restriction was identified in the public sources reviewed for garlic essential oil.

Contraindications & cautions

majorPublic safety summaries state that garlic essential oil inhibits blood clotting and should be avoided with anticoagulant medication, major surgery, hemophilia, and other bleeding disorders.
majorGarlic essential oil should not be applied undiluted to skin because it is strongly irritating and has a very low published dermal limit in leave-on products.

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Explore measured chemistry from supplier batches

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THE SCIENCE BEHIND THE SCENT

Inside the oil

8 constituents

An oil's character comes from its natural chemical composition. Explore each constituent to understand the connections.

About this composition

This China-origin record follows the 2014 comparative GC-MS study of Bangladeshi and China garlic oils. The China sample is dominated by allyl methyl trisulfide, diallyl trisulfide, and diallyl disulfide, with additional sulfur heterocycles and allyl sulfides. Likely analytical artifacts reported in the paper, such as trimethylsilyldiazomethane, were excluded from the constituent list instead of being treated as native garlic volatiles.

Constituent	Typical amount	Reported range	Chemical family	Source
Allyl sulfide	0.89%	0.89–0.89%	organosulfur sulfide	View source Comparative Studies on Physicochemical Properties and GC-MS Analysis of Essential Oil of Two Varieties of Allium sativum Linn (Garlic) https://eijppr.com/storage/models/article/OyE9qxhXsaJjaHR7YhF5fyUo5jR3SrfuqMqUlui2wonABCdMkVPafdFW6YGY/comparative-studies-on-physicochemical-properties-and-gc-ms-analysis-of-essential-oil-of-two-varie.pdf (Table 3, China garlic, 1-Propene, 3,3'-thiobis, 0.89%)
Allyl methyl disulfide	4.94%	4.94–4.94%	organosulfur disulfide	View source Comparative Studies on Physicochemical Properties and GC-MS Analysis of Essential Oil of Two Varieties of Allium sativum Linn (Garlic) https://eijppr.com/storage/models/article/OyE9qxhXsaJjaHR7YhF5fyUo5jR3SrfuqMqUlui2wonABCdMkVPafdFW6YGY/comparative-studies-on-physicochemical-properties-and-gc-ms-analysis-of-essential-oil-of-two-varie.pdf (Table 3, China garlic, Disulfide, methyl 2-propenyl, 4.94%)
Diallyl disulfide	17.24%	17.24–17.24%	organosulfur disulfide	View source Comparative Studies on Physicochemical Properties and GC-MS Analysis of Essential Oil of Two Varieties of Allium sativum Linn (Garlic) https://eijppr.com/storage/models/article/OyE9qxhXsaJjaHR7YhF5fyUo5jR3SrfuqMqUlui2wonABCdMkVPafdFW6YGY/comparative-studies-on-physicochemical-properties-and-gc-ms-analysis-of-essential-oil-of-two-varie.pdf (Table 3, China garlic, Diallyl disulfide, 17.24%)
Allyl methyl trisulfide	29.12%	29.12–29.12%	organosulfur trisulfide	View source Comparative Studies on Physicochemical Properties and GC-MS Analysis of Essential Oil of Two Varieties of Allium sativum Linn (Garlic) https://eijppr.com/storage/models/article/OyE9qxhXsaJjaHR7YhF5fyUo5jR3SrfuqMqUlui2wonABCdMkVPafdFW6YGY/comparative-studies-on-physicochemical-properties-and-gc-ms-analysis-of-essential-oil-of-two-varie.pdf (Table 3, China garlic, Trisulfide, methyl 2-propenyl, 29.12%)
Methyl m-tolyl sulfide	4.01%	4.01–4.01%	organosulfur sulfide	View source Comparative Studies on Physicochemical Properties and GC-MS Analysis of Essential Oil of Two Varieties of Allium sativum Linn (Garlic) https://eijppr.com/storage/models/article/OyE9qxhXsaJjaHR7YhF5fyUo5jR3SrfuqMqUlui2wonABCdMkVPafdFW6YGY/comparative-studies-on-physicochemical-properties-and-gc-ms-analysis-of-essential-oil-of-two-varie.pdf (Table 3, China garlic, Benzene, 1-methyl-3-(methylthio), 4.01%)
Diallyl trisulfide	21.98%	21.98–21.98%	organosulfur trisulfide	View source Comparative Studies on Physicochemical Properties and GC-MS Analysis of Essential Oil of Two Varieties of Allium sativum Linn (Garlic) https://eijppr.com/storage/models/article/OyE9qxhXsaJjaHR7YhF5fyUo5jR3SrfuqMqUlui2wonABCdMkVPafdFW6YGY/comparative-studies-on-physicochemical-properties-and-gc-ms-analysis-of-essential-oil-of-two-varie.pdf (Table 3, China garlic, Trisulfide, di-2-propenyl, 21.98%)
3-Vinyl-1,2-dithiacyclohex-4-ene	5.65%	5.65–5.65%	organosulfur heterocycle	View source Comparative Studies on Physicochemical Properties and GC-MS Analysis of Essential Oil of Two Varieties of Allium sativum Linn (Garlic) https://eijppr.com/storage/models/article/OyE9qxhXsaJjaHR7YhF5fyUo5jR3SrfuqMqUlui2wonABCdMkVPafdFW6YGY/comparative-studies-on-physicochemical-properties-and-gc-ms-analysis-of-essential-oil-of-two-varie.pdf (Table 3, China garlic, 3-Vinyl-1,2-dithiacyclohex-4-ene, 5.65%)
1,2,4,6-Tetrathiepane	9.05%	9.05–9.05%	organosulfur heterocycle	View source Comparative Studies on Physicochemical Properties and GC-MS Analysis of Essential Oil of Two Varieties of Allium sativum Linn (Garlic) https://eijppr.com/storage/models/article/OyE9qxhXsaJjaHR7YhF5fyUo5jR3SrfuqMqUlui2wonABCdMkVPafdFW6YGY/comparative-studies-on-physicochemical-properties-and-gc-ms-analysis-of-essential-oil-of-two-varie.pdf (Table 3, China garlic, 1,2,4,6-Tetrathiepane, 9.05%)

Profile source: Comparative Studies on Physicochemical Properties and GC-MS Analysis of Essential Oil of Two Varieties of Allium sativum Linn (Garlic); Garlic Oil China FCC; Essential Oil Safety and Dermal Limits: A Guide for Skincare Formulators (Pt 2); Garlic Essential Oil Supplier, Manufacturer & Wholesaler · https://eijppr.com/storage/models/article/OyE9qxhXsaJjaHR7YhF5fyUo5jR3SrfuqMqUlui2wonABCdMkVPafdFW6YGY/comparative-studies-on-physicochemical-properties-and-gc-ms-analysis-of-essential-oil-of-two-varie.pdf ; https://www.vigon.com/garlic-oil-china-fcc/ ; https://www.craft360.com.au/blogs/news/essential-oil-safety-and-dermal-limits-a-beginners-guide-for-skincare-formulators-v2 ; https://www.kusharomaexports.com/essential-oils/garlic-essential-oil

A TRADITION OF BOTANICAL CURIOSITY

Traditional & reported uses

These uses reflect the profile's reported traditions and literature. They are not established treatment recommendations.

traditionally associated with folk wellness practices across many cultures, largely as a culinary/flavor material rather than a fragrance oil
reported to be used historically in topical folk preparations for general wellness (not medically endorsed)
used in flavor and aroma chemistry for its pungent, sulfurous character
traditionally linked to protective or ritual use in some folk traditions
used sparingly and heavily diluted in niche 'gourmand' or novelty perfumery projects

For aromatherapy and wellness use only — not medical advice. Effect statements are traditional/reported associations, not treatment claims. The Synergy Rating scores blend craft, harmony and safety, not medical efficacy. Read the safety framework.

What we're still learning · 2 data gaps

Good decisions start with knowing what is — and isn't — in the evidence.

CAS for the article's listed '1,2,4,6-Tetrathiepane' peak was not confidently resolved from a public primary chemistry source in this pass, so the CAS field remains null.
No public source reviewed in this pass provided verified volatility-rate or tenacity-hour values.