Hay Absolute
Hierochloe odorata
Classical French perfumery absolute extracted from sweet hay grasses; coumarin-rich, offering warm, dry, vanilla-like sweetness and rustic nostalgia in compositions.
Aroma Profile
Warm, dry, and sweetly herbaceous with unmistakable new-mown hay character, soft coumarin-tonka sweetness, green undertones, and faint tobacco-like depth; deeply nostalgic and rustic.
Strength: medium
Get Personalized Safety Info
Sign in and complete your health profile to see safety warnings personalized to your age, sex, medications, conditions, and allergies for this essential oil.
Therapeutic Properties
Chemistry
Primary Constituents
Coumarin 5-15%, phytol, benzyl benzoate, ionones, linalool traces, various esters
Emotional & Psychological
Hay absolute evokes pastoral nostalgia, memory, and the comforting associations of late-summer fields, supporting emotional states of reverie, restfulness, and gentle melancholy. Its coumarin-driven warmth is often used in perfumery to anchor heart-opening accords and lend a sense of continuity, ritual, and softness to blends, particularly in evening and sleep-focused olfactory compositions.
Physical Therapeutic Uses
Therapeutically, hay absolute offers a relaxing olfactory experience but is not typically used in active therapeutic protocols. Coumarin content requires mindfulness regarding dermal and internal exposure, especially alongside anticoagulants. Its dense viscosity and base-note character make it best suited to perfumery solid balms, natural fragrance accords, and contemplative diffusion rather than massage or acute care applications.
Safety Profile
Contraindications
Contraindicated in pregnancy, lactation, anticoagulant therapy, and hepatic impairment.
Drug Interactions
May potentiate anticoagulants and antiplatelet drugs due to coumarin content.
Pet Safety Notes
Toxic to cats; avoid topical use on pets; diffuse with caution and only in ventilated spaces.
Application Methods
How to Use This Oil
base note — evaporates slowly, lingers longest. Provides depth, warmth, and fixative qualities.
Common Ways to Use
Diffusion
Add 3-5 drops to a diffuser with water. Run for 30-60 minutes at a time with breaks. Ensure good ventilation.
Direct Inhalation
Add 1-2 drops to a tissue or personal inhaler. Breathe in gently. Good for quick relief and on-the-go use.