✦ Powerful woody-violet aroma chemical with iconic cedarwood and fruity raspberry facets
✦ Isomer of alpha ionone — delivers a deeper, more woody and tenacious character
✦ Core ingredient in violet soliflores, oriental blends, floral chypres, and classic attars
✦ Exceptional tenacity and diffusion — longevity of 8 to 12+ hours on skin
✦ Performs well in leave-on and rinse-off applications within IFRA limits
✦ Vegan, cruelty-free synthetic — consistent quality across every batch
✦ Cosmetic-grade purity — suitable for fine fragrance, personal care, and home fragrance

Beta Ionone is a synthetic aroma chemical first isolated in the late 19th century as researchers studied the fragrant compounds found in violet flowers and orris root. It belongs to the ionone family — cyclic ketones derived from the degradation of carotenoids — and has since become a cornerstone ingredient in professional and DIY perfumery worldwide. Its long history spans over a century of use in both iconic designer fragrances and traditional attars.

What sets beta ionone apart from its isomer, alpha ionone, is its pronounced woody and cedarwood-like character. Where alpha ionone leans violet and powdery, beta ionone goes deeper — rooty, woody, and softly fruity with a raspberry undertone that adds warmth without sweetness. This duality makes it uniquely versatile: it functions both as a modifier to sharpen floral accords and as a base anchor to give compositions lasting depth and structure.

Bio Shop Pakistan supplies cosmetic-grade beta ionone suitable for fine fragrance development, attar blending, personal care formulation, and home fragrance applications.

SCENT DESCRIPTION : Beta Ionone opens with a rich, woody-violet impression — rooty and dense, like walking through a forest floor carpeted with violet leaves. A warm raspberry undertone adds quiet fruitiness without turning sweet. As it dries down, a clean cedarwood quality emerges, dry and slightly powdery. It has a meditative, deep quality that grounds any composition it enters.

NOTE POSITION : Mid-Base

FRAGRANCE FAMILY : Woody · Floral · Oriental

FACETS : Woody · Violet · Cedarwood · Raspberry · Powdery

TENACITY : Very High — 10 to 14 hours on skin and fabric

SILLAGE : Medium-High — projects well in the opening, then settles into a close, intimate dry-down

Chemical Name : (E)-4-(2,6,6-Trimethylcyclohex-2-en-1-yl)but-3-en-2-one
CAS Number : 14901-07-6
Synonyms : β-Ionone · Cyclogeranylacetone · 4-(2,6,6-Trimethyl-2-cyclohexenyl)-3-buten-2-one · Irisone Beta
Purity : 95% minimum (cosmetic grade)
Appearance : Colorless to pale yellow clear liquid
Odor Threshold : Approximately 0.007 ppb in air — extremely potent, use with care
Solubility : Freely soluble in ethanol and carrier oils · Practically insoluble in water
Specific Gravity : 0.944 – 0.950 at 20°C
Flash Point : Approximately 78°C (verify with SDS)
Type : Synthetic

Fine Fragrance : ★★★★★
Beta Ionone is a staple in fine fragrance development, particularly in violet soliflores, woody florals, chypres, and oriental bases. It provides lasting depth and a natural warmth that reads as both classic and contemporary. Iconic references include Dior Fahrenheit, Chanel No. 5 base structure, and many violet-family EDPs.

Attar and Oriental Blending : ★★★★★
In attar and oriental perfumery, beta ionone integrates seamlessly with oud, sandalwood, rose, and musk bases. It adds a rooty-woody depth that elevates traditional blends without overpowering them. An essential modifier for serious Pakistani and Middle Eastern formulators.

Functional Fragrance : ★★★★☆
Suitable for use in body lotions, creams, and hair conditioners within IFRA-compliant usage levels. Its tenacity makes it effective even in rinse-off formats where many aroma chemicals fade quickly. Best used in combination with a fixative to maximize carry-through.

Cosmetics : ★★★★☆
Beta Ionone is used in prestige skincare and hair care products to impart a subtle, lasting fragrance signature. It is stable in most cosmetic matrices and does not significantly affect color in transparent formulas. Always conduct patch and stability testing before production.

Home Fragrance : ★★★★★
Exceptional performance in reed diffusers, incense sticks, and wax candles due to its high diffusion and long tenacity. In diffusers it provides a clean woody-violet room scent that is neither sharp nor cloying. In candles, its throw is warm and full, especially when blended with musks or floral aldehydes.

Usage Rates (Approximate — in final product)

EDP : 5% – 15% (in fragrance compound as percentage of final blend)
EDT : 3% – 8%
Body Lotion : 0.5% – 1.5%
Shampoo/Body Wash : 0.3% – 1.0%
Candle : 2% – 6%
Reed Diffuser : 5% – 15%
Soap (Rinse-Off) : 0.5% – 1.0%

IFRA 51st Amendment Limits (Approximate — verify at ifrafragrance.org)

Category 4 (Fine Fragrance, EDP, EDT) : ~5.4% in final product
Category 5a (Body Lotion, Cream) : ~1.0% in final product
Category 9 (Shampoo, Shower Gel) : ~2.0% in final product
Category 11a (Rinse-off general) : ~2.0% in final product
Category 12 (Candle, Air freshener) : No restriction under current data

⚠️ Beta Ionone is an IFRA-restricted material based on QRA skin sensitization data. Always calculate the final product concentration, not concentrate concentration.
⚠️ Odor threshold is extremely low — use a precision scale. Even small overages will cause imbalance in your formula.
⚠️ Not intended for use near eyes or on lips at any concentration. See IFRA Category 1 and 3 limits.

Method 1 — Direct Dilution in Alcohol
Dilute beta ionone to 10% in IPM or DPG before weighing into your fragrance formula. This prevents misdosing due to its extreme potency and allows easier blending. Start at 0.5% in your total formula and scale up in 0.1% increments.

Method 2 — Pre-Blend with Musks as a Base Module
Combine beta ionone with Iso E Super, Habanolide, or Galaxolide to create a woody-musk base module. This base can then be lifted with rose oxide or geranium for a violet-rose oriental effect. Pre-blending also tames the raw woodiness of beta ionone in isolation.

Method 3 — Layering in Attar Construction
In traditional attar making, add beta ionone to your sandalwood or oud base before introducing florals. Its rooty, cedarwood character forms a natural bridge between resinous woods and delicate rose or jasmine. This technique is widely used in high-quality Pakistani and Gulf-style attars.

BEST PAIRINGS

Rose Absolute / Rose Otto → Creates a deep, rooty rose effect reminiscent of classic rose attars
Iso E Super → Amplifies woody diffusion and adds a cedarwood-metal accord
Sandalwood (Mysore / Synthetic) → Deepens the creaminess; produces a classic oriental base
Orris Butter / Orris Concrete → Perfect synergy — true violet-iris accord with natural elegance
Raspberry Ketone → Enhances the fruity facet; useful in gourmand-oriental blends
Labdanum Absolute → Adds animalic, amber depth for oriental and chypre bases
Hedione / Methyl Dihydrojasmonate → Lifts the florality and adds airiness to the woody structure
Musk Ambrette / Habanolide → Smooth, clean base anchor that prolongs the ionone effect

AVOID
Avoid combining at high doses with alpha isomethyl ionone — cumulative skin sensitization risk increases and the profile becomes muddy and indistinct.

Beta ionone is, in my experience, one of the most underestimated building blocks a formulator can have. Most beginners associate it only with violets, but its true power lies in that woody-cedarwood drydown — the quality that makes a fragrance feel rooted, grounded, and sophisticated. I use it not just in violet compositions, but in almost every oriental, chypre, and woody musk I develop. Even at 0.3% in a finished EDT, it changes the character of the base from thin to structured.

ADVANCED TIP: Try using beta ionone as a "wood enhancer" rather than a violet note. In your next woody oriental formula, replace 20% of your synthetic sandalwood with beta ionone and observe how it sharpens the cedarwood impression and adds a fruity-rooty depth that sandalwood alone cannot provide. Keep the total beta ionone under 1% in the finished fragrance to avoid overpowering the accord — its detection threshold is extremely low and its tenacity is unforgiving.

Physical State : Clear to pale yellow liquid at room temperature
Skin Safety : Restricted — follow IFRA 51st Amendment limits for each product category. May cause sensitization at elevated concentrations. Dilute before skin contact.
Eye Contact : Avoid direct contact. Rinse immediately with water for 15 minutes if contact occurs. Seek medical attention if irritation persists.
Ingestion : Not for consumption. If ingested, do not induce vomiting. Seek immediate medical attention.
Ventilation : Use in a well-ventilated workspace. Avoid prolonged inhalation of undiluted material. Use a mask when handling large quantities.
Storage : Store in a cool, dark, dry location away from heat, light, and oxidizing agents. Ideal temperature: 10°C – 25°C.
Shelf Life : 24 to 36 months when stored correctly in sealed containers
Container : Store in original amber glass or HDPE containers only. Avoid contact with reactive metals or rubber seals.
Flammability : Combustible liquid. Keep away from open flames and ignition sources. Flash point approximately 78°C.

Q: What does beta ionone smell like?
A: It smells woody, violet, and slightly fruity — like fresh violet flowers layered over dry cedarwood with a quiet raspberry undertone. It is deeper and woodier than alpha ionone, which is softer and more powdery.

Q: How much beta ionone should I use in a perfume formula?
A: Start at 0.3% to 1% in your total fragrance formula. It is extremely potent — its odor threshold is well below 1 ppb — so small amounts create a strong effect. Always weigh on a 0.01g precision scale.

Q: Is beta ionone safe for skin products?
A: Yes, within IFRA limits. The 51st Amendment restricts it based on sensitization data. For body lotions, stay under approximately 1% in the final product. Always verify the current IFRA guideline at ifrafragrance.org before production.

Q: Can I use beta ionone in soy or paraffin candles?
A: Yes, beta ionone performs well in candles with a good hot and cold throw. Use between 2% and 6% in the final wax. Blend with musks or floral bases for a complete candle accord.

Q: How does beta ionone compare to alpha ionone?
A: Alpha ionone is soft, powdery, and classically violet — it reads as a top-mid note with moderate tenacity. Beta ionone is woodier, deeper, and more persistent — a true base note with exceptional longevity. Both are useful, but beta ionone provides more structural power and diffusion in a finished fragrance. Many professional formulas use both together to capture the full ionone character.