Guaiacwood Essential Oil

✦ Pure steam-distilled essential oil from the heartwood of Bulnesia sarmientoi, sourced from South America
✦ Naturally rich in guaiol and bulnesol — rare sesquiterpene alcohols that deliver deep fixative power and woody warmth
✦ Signature scent: dry, smoky wood with soft rosy and earthy undertones — a true base note anchor in any blend
✦ Used as a fixative and base note in iconic oriental, chypre, and woody fine fragrances by major perfume houses
✦ Excellent tenacity — extends the longevity of top and mid notes and improves overall fragrance persistence on skin
✦ Naturally vegan and cruelty-free; no animal-derived ingredients or processing
✦ Semi-solid at room temperature — warm gently before use for easy and accurate dispensing

Guaiacwood Essential Oil is obtained by steam distillation of the heartwood chips of Bulnesia sarmientoi, a slow-growing hardwood tree endemic to the Gran Chaco region of South America. The tree has been harvested for its fragrant timber for centuries, with the oil emerging as a prized trade commodity used across European and Middle Eastern perfumery traditions. Its smoky, woody character was documented in classical perfume formulas of the early twentieth century and it continues to hold a respected position in both traditional and contemporary fragrance work.

What sets Guaiacwood apart from other woody base materials is its unique chemical signature. The oil is unusually rich in guaiol and bulnesol, two high-molecular-weight sesquiterpene alcohols that evaporate slowly and anchor a fragrance with remarkable tenacity. This same chemical profile gives the oil a semi-solid texture at ambient temperature and produces a scent that is simultaneously dry, smoky, subtly floral, and earthy — a combination no single synthetic material has fully replicated. Its ability to soften harsher notes and integrate a blend is valued as much as its own character.

Rabibazaar supplies cosmetic-grade Guaiacwood Essential Oil suitable for DIY perfumers, attar blenders, cosmetic formulators, and home fragrance artisans seeking a reliable, authentic, and high-tenacity woody base material.

SCENT DESCRIPTION: Guaiacwood Essential Oil opens with a dry, pencil-shaving woodiness underscored by a cool thread of smoke that feels ancient and grounding. As it settles, a quiet rose-like warmth emerges from its heart, softening the initial dryness into something almost intimate. There is a faint tea-like quality in the mid-stage that adds a contemplative, meditative dimension to the overall character. On skin, the oil becomes slightly creamier and more resinous over time, leaving a long, clean wood trail that anchors the entire fragrance composition.

NOTE POSITION: Base

FRAGRANCE FAMILY: Woody / Earthy / Oriental

FACETS: Smoky · Dry Wood · Rosy · Earthy · Tea-like

TENACITY: Very High — 24 to 48 hours on skin; considerably longer on fabric and hair

SILLAGE: Medium — intimate and close-to-skin rather than projecting; operates as a quiet depth charge beneath other notes

Chemical Name : Guaiol-rich sesquiterpene alcohol blend; primary components Guaiol and Bulnesol
CAS Number : 8016-23-7
Synonyms : Guaiac Wood Oil, Palo de Guayaco Oil, Bulnesia Oil, Champacol (historical trade name)
Purity % : 100% pure essential oil, natural and undiluted
Appearance : Semi-solid to viscous paste; pale yellow to light amber; solidifies below 25°C
Odor Threshold : Low — perceivable at very small concentrations due to high molecular density
Solubility : Soluble in ethanol and fixed oils; insoluble in water
Specific Gravity : 0.965 – 0.983 at 20°C
Flash Point : Approximately 100°C (212°F)
Type : Natural (steam-distilled essential oil)

Fine Fragrance ★★★★★
Guaiacwood is a foundational base note in fine fragrance work, prized for its fixative strength and its ability to anchor and extend an entire composition. It integrates seamlessly into oriental, chypre, woody floral, and fougère structures. Its dry, smoky-rosy character adds complexity without overpowering other notes, making it one of the most versatile naturals in a perfumer's palette.

Attar & Oriental Blending ★★★★★
This oil is essential to traditional attar and bakhoor formulation. Its deep wood-smoke character binds perfectly with oud, rose absolute, sandalwood, and heavy musk bases, acting as both a scent contributor and a structural anchor. It is considered indispensable in South Asian and Middle Eastern artisan perfumery and produces compositions with outstanding tenacity on skin and fabric.

Functional Fragrance ★★★☆☆
Guaiacwood oil can be incorporated into functional fragrance products such as deodorants, fabric softeners, and scented powders at lower concentrations to add a warm woody character. Its performance can be affected by product pH and processing temperature, so stability testing is recommended before commercial use in rinse-off or high-heat applications.

Cosmetics ★★★★☆
Used in skin care formulations including creams, body lotions, beard oils, and serums where it contributes both scent and mild skin-conditioning properties derived from its sesquiterpene alcohol content. It blends well with plant carrier oils and butter bases and is generally well-tolerated at recommended usage rates. Patch testing is advised for all leave-on applications.

Home Fragrance ★★★★☆
An excellent choice for reed diffusers, incense sticks, and wax melts owing to its outstanding tenacity and evocative smoky wood aroma. It creates a warm, meditative atmosphere and performs especially well in oud-wood, sandalwood, and incense-themed blends. Always liquefy the oil before adding to wax bases to ensure uniform distribution.

Recommended Usage Rates

EDP : 3 – 8%
EDT : 2 – 6%
Body Lotion : 1 – 3%
Shampoo/Body Wash : 0.5 – 1.5%
Candle : 5 – 10%
Reed Diffuser : 10 – 20%
Soap (Cold Process) : 1 – 3%

IFRA 51st Amendment — Bulnesia sarmientoi Wood Oil

IFRA Category 3 (Eye area products) : Refer to current IFRA 51st Amendment compendium
IFRA Category 4 (Body lotion, leave-on) : Refer to current IFRA 51st Amendment compendium
IFRA Category 5 (Face cream) : Refer to current IFRA 51st Amendment compendium
IFRA Category 11a (Fine fragrance) : Refer to current IFRA 51st Amendment compendium

⚠️ Bulnesia sarmientoi is listed under CITES Appendix II due to unsustainable harvesting pressure. Always source from suppliers with verified legal and documented sustainable supply chains. Confirm your supplier holds valid CITES export documentation before purchasing for commercial use.

⚠️ Guaiacwood oil may cause sensitization in susceptible individuals at elevated concentrations. Always stay within IFRA-recommended limits in leave-on and rinse-off products and conduct a patch test before use.

Usage Method 1 — Direct Addition to Perfumer's Alcohol
Guaiacwood oil solidifies below approximately 25°C. Before measuring, place the sealed bottle in a warm water bath at 40–50°C for 5 to 10 minutes until the oil liquefies fully. Add to perfumer's alcohol (95% ethanol), cap tightly, and shake well. Allow the blend to macerate for a minimum of 48 to 72 hours before evaluation. This resting period is essential for guaiacwood to fully integrate and reveal its true character in the composition.

Usage Method 2 — In Fixed Oil or Carrier Oil
For cosmetic and skin care formulations, liquefy the Guaiacwood oil first, then blend into a fixed carrier oil such as jojoba, fractionated coconut oil, or sweet almond oil at 1–3% of total formula weight. This method is ideal for body oils, serums, and beard oil formulations where both scent contribution and mild conditioning are desired.

Usage Method 3 — In Wax or Resin for Incense and Home Fragrance
For candle and incense applications, melt the wax or resin base fully before adding the oil. Introduce Guaiacwood oil at 50–60°C and stir slowly and thoroughly to ensure even distribution. Adding the oil to a wax that is too cool will result in uneven scent distribution and poor throw. For stick incense, blend with a warm resin base or DPG carrier before coating the bamboo core.

BEST PAIRINGS

Rose Absolute → Amplifies the natural rosy facet of guaiacwood; produces a classic woody floral accord
Oud (Agarwood Oil) → Builds a dark, smoke-wood oriental anchor; iconic pairing in Arabic and attar perfumery
Sandalwood → Softens the smokiness and introduces creamy warmth; a timeless woody duo
Patchouli → Adds earthy, dark, fungal depth; widely used in chypre and oriental structures
Vetiver → Reinforces the smoky rooty character; creates an ultra-tenacious earthy base
Frankincense → Adds resinous, meditative lift that elevates the wood smoke into incense territory
Ambrette Seed → Introduces a radiant musk warmth that contrasts beautifully with the dry wood
Iris / Orris Butter → Creates a powdery, violet-wood elegance; used in high-end oriental and niche compositions

AVOID
Avoid using Guaiacwood oil at high concentrations alongside delicate citrus top notes such as bergamot or lemon in balanced compositions. The density and smokiness of guaiacwood can suppress the brightness and lift of citrus accords. Instead, deploy citrus notes as sharp bursts above a guaiacwood base, keeping the two in separate concentration zones within the fragrance pyramid.

Among all the natural wood materials I work with, Guaiacwood holds a particular place because of its refusal to behave like a conventional ingredient. It does not project loudly or demand recognition — it wraps itself around the other notes in a blend and makes them last longer, sit closer to skin, and smell richer and more cohesive. There is something almost architectural about it: it adds structural density without heaviness, smoke without harshness, and a faint rose without ever announcing itself. In attar work especially, it is indispensable to me. Almost every serious oriental composition I build carries Guaiacwood at its foundation — not as a character ingredient, but as the invisible scaffolding that holds the entire structure together.

ADVANCED TIP: To unlock the rosy facet of Guaiacwood and steer a blend toward a naturals-only floral-woody direction, combine Guaiacwood oil with Rose Oxide at 0.1–0.3% of the total formula and a trace of Geranium Essential Oil at 0.5–1.0%. This three-ingredient combination creates an elegant rosy-wood accord of surprising sophistication with no synthetics required. It performs exceptionally well in both EDP concentrations and concentrated attar formats on a mukhallat base.

Physical State : Semi-solid to viscous paste at room temperature; liquid above 25–30°C
Skin Safety : Generally safe within IFRA-recommended usage rates; dilute before all skin contact; patch test required for leave-on products
Eye Contact : Avoid direct contact; if contact occurs flush thoroughly with clean water for 15 minutes and seek advice if irritation persists
Ingestion : Not intended for internal use under any circumstances; keep out of reach of children
Ventilation : Use in a well-ventilated workspace, particularly when warming or processing in large quantities
Storage : Store in a cool, dark location below 25°C; keep container tightly sealed between uses
Shelf Life : 3 to 5 years when stored correctly; oxidation risk increases significantly with repeated air exposure over time
Container : Amber glass or HDPE container recommended; avoid prolonged storage in clear glass or standard PET plastic
Flammability : Flash point approximately 100°C; not a high flammability risk at room temperature; keep away from open flame when liquefying by heat

Q: Why is my Guaiacwood oil completely solid in the bottle?
A: This is completely normal behaviour. Guaiacwood oil solidifies at ambient temperature due to its high sesquiterpene alcohol content, particularly guaiol and bulnesol. Place the sealed bottle in warm water at 40–50°C for several minutes until it liquefies, then measure and use as required.

Q: Can Guaiacwood Essential Oil be applied directly to skin?
A: No. Always dilute before skin application at 1–3% in a carrier oil or lotion base. Undiluted application can cause sensitization in some individuals. A patch test on a small area is strongly recommended before any leave-on formulation is used broadly.

Q: Is Guaiacwood Essential Oil the same as Palo Santo oil?
A: No, these are two entirely different oils from different plant species. Palo Santo comes from Bursera graveolens and has a citrus-resinous, slightly sweet character. Guaiacwood comes from Bulnesia sarmientoi and is drier, smokier, and more woody. They are sometimes confused but are not interchangeable in fragrance or cosmetic formulations.

Q: How do I use Guaiacwood oil as a fixative in a perfume blend?
A: Add liquefied Guaiacwood oil to your base note section at 3–8% of the total formula before introducing your top and mid notes. Its high molecular weight slows evaporation across the entire blend, improving overall longevity. Allow the finished formula to macerate in alcohol for at least 48–72 hours before final evaluation for best results.

Q: How does Guaiacwood Essential Oil compare to synthetic guaiacwood alternatives such as Guaiacol or Guaiazulene?
A: Natural Guaiacwood Essential Oil contains a complex matrix of guaiol, bulnesol, and related sesquiterpenes that no single synthetic ingredient can reproduce. Synthetic guaiacol isolates a phenolic, smoky-medicinal facet, while guaiazulene captures the deep blue woody-earthy aspects, but neither delivers the full rounded character of the true essential oil. For serious attar, oriental, and natural fine fragrance work, the natural oil is significantly preferred for its depth, complexity, and superior fixative behaviour.

Professional formulation workflow

Guaiacwood Essential Oil should be evaluated in a controlled small batch before production. Confirm the supplied grade, active concentration and recommended application range from the current supplier documentation. Weigh accurately instead of measuring by drops, record every adjustment, and compare the modified trial against an unchanged control.

Compatibility and quality checks

Test the ingredient in the actual alcohol, oil, surfactant, emulsion or wax base intended for sale. Observe clarity, separation, color, odor and performance immediately after mixing and again after a suitable resting period. A material that looks stable in a concentrate can behave differently in the finished formulation.

Scale-up and safety

Convert percentages into exact batch weights and verify the final consumer-product concentration before scaling. Follow the latest applicable IFRA, cosmetic, chemical and supplier safety documentation for the intended category. Use appropriate protective equipment, ventilation and clearly labeled containers, and retain a sample from every approved batch for quality comparison.