Terpenes in Everyday Products: Uses and Formulation Guide

Terpenes contribute to the aromas of many plants and feature in ingredients used across everyday products. From citrus-led fragrances to botanical flavourings, their aromatic character can help shape how a product is experienced.

For brands and product developers, the opportunity goes beyond choosing a pleasant scent. The ingredient needs to suit the product, work within the formulation and remain appropriate throughout its intended use.

This guide explores where terpenes can feature, how to approach ingredient selection and what to consider when moving from an aroma idea to a finished product.

Why are terpenes used in everyday products?

Terpenes can contribute recognisable aromatic notes, either as individual ingredients or within more complex mixtures. Depending on the composition, a profile might suggest citrus, pine, herbs, flowers or wood.

They may be present within essential oils, supplied as isolated ingredients or combined into formulated blends. These different formats are not interchangeable, even when their aroma descriptions sound similar.

For product development, start by identifying the purpose of the ingredient. Are you trying to create a particular scent, support a flavour profile or adjust an existing aromatic character? A clear purpose makes it easier to choose an appropriate material.

Natural origin does not determine suitability

A naturally derived ingredient still needs to be assessed for its intended application. Its concentration, composition and how people will encounter it all matter.

For example, an ingredient suitable for one home-fragrance formulation should not automatically be used in a skin product or a drink. Each application needs its own assessment.

Where can terpenes feature in everyday products?

Cosmetics and personal care

Terpenes can be present in fragrance ingredients used in products such as cleansers, shampoos and body-care formulations.

A development brief might call for a restrained citrus character in a wash product or a soft botanical aroma in a body formulation. The scent should be considered alongside the product's purpose and the way it will be used.

Leave-on and rinse-off products involve different exposure conditions. Ingredient restrictions, fragrance allergens and the complete formulation must be considered rather than relying on the suitability of one ingredient in isolation.

In Great Britain, a cosmetic product must undergo assessment by a qualified safety assessor before it is made available to consumers. Supplier information supports that process but does not replace assessment of the finished product.

Home fragrance and reed diffusers

Terpene-containing aromatic ingredients may be considered within appropriately developed home-fragrance formulations.

A useful brief should describe both the target aroma and the delivery format. A reed diffuser, a room spray and an electric diffuser do not necessarily use the same type of formulation.

Check compatibility with the intended base, packaging and equipment. Do not assume that a concentrated blend can be added directly to water or used in any diffuser.

For products placed on the market, relevant safety, classification and labelling requirements must also be assessed.

Candles and wax melts

For candles and wax melts, the aroma is one part of a wider product system. The chosen aromatic ingredient needs to be suitable for the wax and the conditions under which the finished product will be used.

A candle development project should consider the complete combination of wax, fragrance, wick and container. Assessing the aroma of a mixture before use does not establish how a candle will perform when burned.

Use ingredients specifically supported for the application and evaluate the finished product. Do not add terpene concentrates to an already lit candle or an existing wax pool.

Food and drink flavourings

Terpenes occur naturally in many culinary ingredients and can also feature in food-flavouring systems. However, a concentrate sold for fragrance or another non-food use should not be repurposed for consumption.

Confirm that the exact ingredient is suitable for the intended food or drink, follow its usage guidance and check the requirements of the market where the product will be sold.

For a closer look at culinary applications, read our guide to terpenes in food and drink at /blog/terpenes-in-food-and-drink.

Household cleaning products

Terpene-containing ingredients can contribute an aromatic character to household products. A citrus-led fragrance, for example, may form part of the product's sensory brief.

Keep fragrance performance separate from cleaning performance. A fresh smell does not demonstrate that a product cleans effectively or has antibacterial properties.

Assess the complete formulation, including surface compatibility, packaging and relevant chemical classification. Avoid adding concentrates to commercial cleaning products, which changes a formulation without establishing its suitability.

Vape and cannabinoid formulations

Terpene profiles are also used in some vape and cannabinoid products to provide aromatic character. These applications require particular attention to the ingredients, formulation and intended exposure.

A food-use designation does not establish suitability for inhalation. Likewise, an appealing profile or a familiar strain name is not evidence that a finished formulation is safe to use.

Development should address the specific material, formulation, equipment and relevant product requirements. There is no universal terpene percentage that makes every combination appropriate.

If cannabis origin is part of your brief, our cannabis-derived terpene guide at /blog/best-cannabis-derived-terpene-blends explains what to ask about sourcing, composition and batch documentation.

How to choose terpenes for a product

Start with the application

"A citrus aroma for a rinse-off cleanser" is a more useful starting point than simply asking for citrus terpenes. Tell the supplier what you are making before selecting a profile.

Include the base formulation, intended user, method of application and market. This helps identify whether a proposed ingredient deserves further evaluation.

Define the aroma clearly

Describe the leading character, supporting notes and anything you want to avoid.

For example, you might ask for bright citrus with a dry woody background, or a light herbal profile without a strong floral character. These descriptions create a clearer target than broad words such as premium, fresh or natural.

For further examples, explore our terpene blend ideas guide at /blog/terpene-blend-ideas.

Understand the supplied composition

Ask whether the material contains only terpene ingredients or includes other aromatic compounds, carriers or diluents.

This information can affect compatibility, ingredient declarations and whether the product matches your sourcing requirements. Do not infer composition from the profile name alone.

Request relevant documentation

Useful documents may include a product specification, safety data sheet, batch analysis and application-specific information.

Ask which documents are available for the exact material under consideration. A generic certificate or an example report may not answer questions about the batch you will receive.

Our practical buying guide at /blog/buy-terpenes-uk explains how these documents support a purchasing decision.

A practical formulation workflow

A structured development process helps you understand what works, what needs adjustment and what further assessment is required.

1. Write a short product brief

Set out the product format, intended use, aroma target and any restrictions before preparing samples.

• What is the finished product?
• Who will use it, and how?
• Which base ingredients are proposed?
• What aromatic character should it have?
• Which ingredients or characteristics must be avoided?
• What packaging and shelf life are being considered?

A useful brief can be concise. Its purpose is to keep ingredient selection and evaluation focused on the same outcome.

2. Confirm the ingredient is suitable for evaluation

Review supplier information before starting formulation work. Establish the intended application, handling precautions and any usage restrictions.

Resolve missing information early. A sample should not proceed to consumer testing simply because the aroma is appealing.

3. Prepare small, documented trials

Where development trials are appropriate, use suitable measuring equipment and record the quantity of every ingredient. Avoid relying on an informal drop count as a repeatable production method.

Follow an agreed preparation process and change one variable at a time where practical. This makes it easier to understand why one version differs from another.

4. Assess the whole formulation

Review more than the initial aroma. Depending on the application, useful observations may include appearance, separation, dispensing behaviour, packaging compatibility and changes during storage.

Set the assessment plan around the finished product. A clear-looking sample is not, by itself, evidence of safety, stability or suitability.

5. Identify specialist testing and assessment needs

Determine which checks require a qualified assessor, specialist laboratory or other relevant expertise. The requirements depend on the product category and its intended use.

Development observations can help refine a formulation, but they do not replace the testing or assessment needed to support commercial supply.

6. Review the move to production

Before increasing batch size, review the mixing process, measurement accuracy, packaging and quality checks.

A successful small trial provides a starting point. The production process still needs to demonstrate that it can deliver the intended formulation consistently.

Common mistakes when incorporating terpenes

Using the same inclusion level for every product

An inclusion level used in one formulation should not be transferred automatically to another. The material, application and relevant restrictions may differ.

Use guidance specific to the ingredient and assess the complete formulation.

Assuming that mixing means dissolving

A mixture may look temporarily uniform after stirring and then separate later. Ask how the ingredient should be incorporated into the intended base and whether a suitable formulated delivery system is needed.

Do not treat shaking before use as a universal answer to uneven distribution.

Increasing concentration to solve every aroma problem

If a profile does not suit the product, adding more may simply make the wrong character more prominent.

Review the profile choice and the balance of the formulation before changing concentration. Specific feedback can reveal that the issue is too much pine, insufficient citrus or an unwanted floral note.

Modifying finished retail products

Adding a concentrate to an existing cream, cleaner, food or vape liquid creates a changed formulation. The original product's assessment and instructions cannot automatically be applied to that mixture.

Develop from a defined brief using ingredients intended for the application rather than treating a finished product as a universal mixing base.

Turning aroma descriptions into unsupported claims

A citrus scent does not prove energising effects, and a floral scent does not establish a sleep benefit. Similarly, an ingredient's reputation does not prove that the finished product is antibacterial or therapeutic.

Describe the aromatic character accurately and assess any performance or health claim separately.

Build a clear ingredient enquiry

The more precisely you describe the project, the easier it is to establish whether a supplier can help.

Include your intended application, preferred aroma, base ingredients, approximate quantity and timescale. State any documentation requirements or sourcing preferences at the beginning.

If the project is still an idea, say so. An early discussion can focus on defining the brief rather than assuming the formulation is ready for manufacture.

Discuss your project with AOHA

AOHA supplies naturally derived terpenes and blends, drawing on hands-on experience with liquid formulations and our own products.

We can discuss ingredient selection and assess enquiries for custom blending or practical formulation support. Each project is reviewed against the application, materials, equipment and scope of work required.

Our UK laboratory experience helps inform these discussions, but suitability is established for the individual project. The product categories described in this guide are not a promise that AOHA manufactures or certifies every type of product.

Contact AOHA with a short outline of what you are developing, where you need help and the quantity you have in mind. We will confirm the support we can offer before work begins.

Frequently asked questions about terpenes in everyday products

Can the same terpene blend be used in cosmetics, food and home fragrance?

Not automatically. Each application has different requirements. Confirm the suitability of the exact material for each intended use rather than assuming one blend is suitable across all categories.

Can I add terpenes to a product I already own?

Do not assume that adding a concentrate to a finished product is appropriate. It changes the formulation, and the original product's safety information and instructions may no longer apply to the mixture.

Are terpenes water-soluble?

Many common terpene ingredients have limited water solubility. Products intended for water-based applications may require a suitable delivery system. Check the specification and incorporation instructions for the exact ingredient.

How much terpene should a formulation contain?

There is no universal percentage. Appropriate use depends on the ingredient, application, relevant restrictions and assessment of the finished product. Follow product-specific guidance rather than a general recipe.

Does a safety data sheet prove my finished product is safe?

No. An SDS provides information about the supplied material, including hazards and handling. It does not replace assessment of a new formulation containing that ingredient.

Can AOHA help with a new product idea?

Send us the intended application, aroma direction, approximate quantity and any known formulation details. We will review the enquiry and confirm whether ingredient supply, blending or other practical support is appropriate.