What Is Aurelione?
Aurelione is a lab made aroma chemical designed to add a soft clean musk effect to scented products. It was first introduced by Symrise, a large German fragrance supplier, yet other producers now offer comparable qualities under different trade names.
The molecule sits in the macrocyclic ketone family, a group prized for skin like musk notes. Chemists build the material through multi step synthesis that links smaller rings into one large ring then adds a ketone group for stability and scent impact. No plant or animal matter is needed which keeps the supply steady and vegan friendly.
At room temperature the ingredient may arrive as a clear liquid on warm days or a pale yellow waxy solid if the lab is cool. Either state is normal and the scent is the same once warmed.
Perfumers reach for Aurelione quite often because it blends smoothly with florals, woods and ambers. It is common in modern fine fragrance and also pops up in shampoo, fabric softener and scented candles.
The shelf life is generous. Kept in a tight container away from light and heat most suppliers quote around two to three years before quality drifts, though many labs keep it longer with no issues.
In cost terms Aurelione sits in the mid range for musks. It is not as costly as some rare macrocycles yet pricier than simple aroma chemicals like citronellol. That balance of price and performance is one reason it became a staple in creative labs.
Aurelione’s Scent Description
Aurelione is filed under the musky family. On a blotter the first impression is a smooth clean skin note touched with faint powder and a creamy balsamic warmth. It does not shout yet has a gentle radiance that feels intimate rather than perfumy.
Give it a minute and you may catch a hint of sweet sandalwood and the cozy vibe of freshly laundered fabric. Some perfumers also notice a light almond like touch that keeps the musk from smelling flat.
In classic perfume talk scents are split into top notes that greet you fast, middle notes that form the heart and base notes that linger. Aurelione sits firmly in the base. It rises slowly, supporting brighter notes above it, then stays on skin or fabric long after citrus and florals fade.
Projection is moderate. It forms a soft bubble around the wearer rather than filling a room which suits its skin scent style. Longevity is strong, often lasting a full day on skin and multiple wash cycles on textiles.
How & Where To Use Aurelione
Perfumers lean on Aurelione when they need a soft yet radiant musk that feels warmer and creamier than laundry style musks but still reads as clean. It shines in modern skin scents, floral musks and woody ambers where an intimate aura is desired. Because it carries a faint balsamic facet it can also round off rough edges in spice or leather accords without masking their character.
In a composition Aurelione often forms part of the base musk accord beside materials like Helvetolide, Muscenone or Exaltolide. It bridges gaps between cool crystalline musks and sweeter macrocyclic ketones giving a natural skin finish. Blended with lactones it boosts diffusion while with sandalwood notes it deepens the creamy nuance. A perfumer reaches for Aurelione over cheaper nitro musks when they want better stability, over linear laundry musks when they need sensuality and over very large ring macrocycles when cost or regulatory limits are tight.
The recommended dose from Symrise is 1-20 percent of the formula concentrate. At trace to 1 percent it adds a barely there powdery whisper that smooths top and heart notes. Between 2 and 5 percent the musk becomes noticeable and pushes a cocoon effect around florals or fruits. Above 10 percent it starts to dominate creating a velvety skin scent that can mask delicate ingredients and may flatten the overall dynamic if not balanced with brighter notes.
Over-use risks include loss of sparkle, reduced projection and a waxy tonality that can feel dull on blotter. High levels also raise the finished product’s flash point which can complicate aerosol or candle work. Always test multiple dilutions on both blotter and skin or fabric to gauge the sweet spot.
Prep work is simple. Warm solidified material gently in a water bath until fully liquid then weigh quickly to limit air exposure. Most labs keep a 10 percent ethanol or dipropylene glycol solution on hand for easy pipetting and safer smelling. Because Aurelione is readily biodegradable it poses fewer wastewater concerns yet standard disposal rules still apply.
Safely Information
Working with aroma chemicals requires attention to basic lab hygiene and sensible handling practices.
- Always dilute before evaluation: create a 10 percent or lower solution in a suitable solvent before smelling to avoid nose fatigue and accidental overdosing
- Avoid direct inhalation: never sniff straight from the bottle use a scent strip in a well ventilated space instead
- Personal protective equipment: wear disposable gloves and safety glasses to shield skin and eyes from splashes or spills
- Work area ventilation: run a fume hood or open window so vapor does not build up during weighing or blending
- Health considerations: some people experience irritation or sensitisation with repeated contact consult a medical professional if pregnant or breastfeeding and keep exposure time and concentration as low as practical
Always review the latest supplier MSDS before each project as data can change and observe current IFRA guidelines for maximum safe use levels in your chosen product category.
How To Store & Dispose of Aurelione
Good storage practice starts with temperature. Aurelione is stable at room temperature yet refrigeration can slow oxidation and extend shelf life, especially for small hobby bottles that may sit around for years. If fridge space is tight a cupboard kept below 20 °C works well as long as it stays dark and clear of radiator heat.
Light and oxygen are the main enemies. Use amber glass or opaque HDPE to block UV and screw on polycone caps that form a tight seal. Dropper tops look convenient but they let air creep in so reserve them only for short lived dilutions.
Try to keep each bottle as full as possible. Transfer leftovers to a smaller vial rather than leaving a large headspace that encourages oxidation and dulls the musk. Label every container with the ingredient name its dilution strength date made and any hazard codes so there is no confusion later.
Store dilutions in a secondary plastic tub or metal tray to catch spills and keep acids, bases and strong oxidizers on a separate shelf. Even though Aurelione has a flash point above 100 °C treat it like any fragrance raw material and keep it away from open flame.
Disposal is straightforward because the molecule is readily biodegradable but do not pour neat material down the drain. Small amounts left in pipettes or on paper strips can go in normal lab trash once fully evaporated. For larger volumes mix with an absorbent such as cat litter seal in a bag then send to chemical waste according to local regulations. Rinse empty bottles with soapy water, let them dry and recycle the glass or plastic if your municipal guidelines allow.
Summary
Aurelione is a synthetic macrocyclic ketone from Symrise that brings a clean musky, powdery and lightly balsamic character to fragrances. It sits in the base of a composition giving a soft skin aura and dependable staying power on skin and fabric.
Perfumers prize it for its ability to bridge harsh or overly bright notes, add sensual warmth and lift other musks without blowing the budget. Mid tier pricing, strong stability and easy blending keep it popular in both fine fragrance and functional products.
The material tolerates normal lab conditions though cooler storage, tight polycone caps and minimal air exposure will keep it fresher for longer. It is biodegradable which simplifies disposal yet standard chemical waste rules still apply.
Commercial houses can order Aurelione directly from Symrise through bulk supply contracts. Hobbyists and indie brands will find smaller packs from specialty resellers or generic makers who list it under alternate trade names, making this versatile musk accessible to projects of any scale.