Chemistry and measurement Reviewed August 16, 2026

Alpha-Terpinene Terpene

α-Terpinene • AL-fuh TER-pih-neen • /ˈælfə tɜːrˈpɪniːn/

A citrus-herbal monoterpene distinct from terpinolene and terpineol.

Chemical class
Cyclic monoterpene
Common aroma notes
citrus, wood, herbs
COA names
α-Terpinene, Alpha-Terpinene

Identity and cannabis context

What Alpha-Terpinene is

Similar names cause confusion, but labs treat alpha-terpinene, terpinolene, and terpineol separately.

Aroma vocabulary

People commonly describe isolated alpha-terpinene with citrus, wood, herbs notes. A finished flower or extract contains a more complex volatile mixture.

Also found in

  • cardamom
  • marjoram
  • tea tree

Chemistry and measurement

What the evidence actually shows

Alpha-terpinene appears on the current New York panel.

What we do not know

Controlled studies have not established that cannabis-level exposure reliably produces a specific mood, symptom, or therapeutic effect in people.

Safety and interpretation

A certificate of analysis identifies composition, not a safe or effective dose. Inhalation can irritate airways, and heating terpenes can create degradation products.

This page is educational and does not provide medical advice. Route, dose, oxidation, heat, other ingredients, and individual health conditions all change risk.

Database records listing Alpha-Terpinene

This bounded preview shows records whose available profile contains Alpha-Terpinene. It is not a total, a dominant-terpene ranking, or a guarantee about a current retail batch.

RS11 cannabis strain
Uplifting High

RS11

RS11 (Rainbow Sherbert #11) is an award-winning 70/30 Indica-leaning hybrid born from Pink Guava, OZK, and Sunset Sherbert genetics. Limonene-dominant with Caryophyllene and Linalool support, it delivers a bright, citrus-berry flavor that opens into euphoric upliftment before settling into deep relaxation and calm. A multi-award winner with THC reaching up to 33%, RS11 suits evening unwinding, creative sessions, and stress relief for experienced consumers.

Caryophyllene-dominant Euphoric Relaxed

Hybrid

Helen Back cannabis strain
Energetic High

Helen Back

Helen Back is a perfectly balanced 50/50 hybrid from Swamp Boys Seeds, crossing Animal Cookies with Georgia Pine. This rare terpinolene-dominant strain (17-25.62% THC) delivers an energizing, creative, and euphoric experience wrapped in a distinctive pine-citrus-diesel aroma. Perfect for daytime use, Helen Back promotes focus, sociability, and stress relief without sedation. The complex flavor profile ranges from fresh pine and eucalyptus to surprising cherry and licorice notes. Ideal for creative projects, social gatherings, and outdoor activities while maintaining mental clarity and functional energy.

Terpinolene-dominant euphoric relaxed

Hybrid

Urkle Berry cannabis strain
Relieving High

Urkle Berry

Urkle Berry is an indica-dominant hybrid (80/20) created by crossing Purple Urkle and Blueberry, delivering sweet berry flavors and deeply relaxing effects. With THC ranging from 7.5-20% and a terpene profile dominated by beta-Caryophyllene and Terpinolene, this strain excels at nighttime use, offering powerful body relaxation, pain relief, and sleep support. The flavor experience combines authentic blueberry sweetness with spicy, herbal complexity, while effects progress from gentle mental uplift to profound physical sedation. Ideal for evening stress relief, pain management, and insomnia.

Caryophyllene-dominant calming

Hybrid

Honduras cannabis strain
Relieving High

Honduras

Honduras is a pure 100% landrace sativa from Central American highlands, preserved by ACE Seeds since 2015. This traditional strain delivers clean, energetic effects with 7-18% THC and an extraordinarily complex terpene profile featuring terpinolene, myrcene, and pinene. Expect floral, citrus, and woody aromatics leading to uplifting, creative, and social effects perfect for daytime activities. A rare glimpse into authentic cannabis genetics before modern hybridization.

Pinene-dominant energetic uplifted

Sativa

Sources

  1. Office of Cannabis Management Testing Limits (opens in new tab)

    New York State Office of Cannabis Management, 2026 • chemistry

Related terpene profiles

Terpinolene

a mixed pine-floral monoterpene without evidence for an uplifting cannabis effect

Terpineol

a floral alcohol often reported as alpha-terpineol

Alpha-Phellandrene

a mint-citrus monoterpene whose alpha isomer appears on panels

Alpha-Terpinene questions

What is Alpha-Terpinene?

Alpha-Terpinene (α-Terpinene) is a citrus-herbal monoterpene distinct from terpinolene and terpineol. Similar names cause confusion, but labs treat alpha-terpinene, terpinolene, and terpineol separately.

What does Alpha-Terpinene smell like?

Common descriptors include citrus, wood, herbs. Aroma is subjective, and other volatile compounds in the tested product also matter.

What does the research say about Alpha-Terpinene?

Alpha-terpinene appears on the current New York panel. Controlled studies have not established that cannabis-level exposure reliably produces a specific mood, symptom, or therapeutic effect in people.

Does a Alpha-Terpinene result predict effects?

No. A lab result identifies chemistry in one sample. It does not guarantee a feeling, benefit, dose, or response for an individual consumer.

Keep exploring the chemistry

Compare all 26 profiles, their aliases, and their evidence limits.

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