How to Make Soap Scent Last Longer - Tips For Long Lasting Aroma of Soap – VedaOils

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How to Make Soap Scent Last Longer? Steps to Follow

A fragrance or essential oil's initial whiff out of the bottle is unquestionably unique. A scent may provide instant inspiration for your next soap recipe's patterns, colours, and ingredients. Yet occasionally the essential oils and aroma in cold process soap might mutate or disappear. Components of the oil can be attacked by the cold process soap's pH level, which changes how they smell.

How To Make Soap Scent Last Longer

That may be really depressing! To guarantee the aroma stays on cold process soap for months after the soap is made, VedaOils tests every fragrance and essential oil before use. Apart from this, there are several tips and tricks that shows you how to make soap scent last longer.

How to Make Soap Scent Last Longer?

Steps to Follow

To ensure that your soap has a lasting and strong scent, it is important to choose fragrances that have both qualities. It is worth noting that the strength of a scent does not necessarily guarantee its longevity. Some essential oils and fragrance oils may smell potent at first, but their fragrance may diminish within a short period of time. To avoid this, it is recommended that you read reviews of fragrances, test them out yourself, and seek advice from other experienced soap makers.

To ensure that your soap has a long-lasting and potent fragrance, it is recommended to use a sufficient amount of fragrance while staying within safe limits for the skin. Even the strongest and most long-lasting fragrances will diminish over time, so it's important to start with enough fragrance to maintain its scent. Fragrance oils and essential oils are made up of chemicals that provide scent, and typically, a high amount of these oils are added to achieve a distinct aroma.

If you add sufficient amount of fragrance oil while making soap, then you will get potent and long lasting aroma and after that you will not think again about how to make soap scent last longer. 

However, infusions are not effective in scenting soap, as the fragrance chemicals in oil-based or water-based infusions are only a small portion of the total infusion and are further diluted when added to soap. It is important to note that not all fragrances are safe for use in high amounts, so it's essential to check the IFRA guidelines or the supplier's recommendations to determine the percentage of a fragrance that is safe for use on the skin and stay within those guidelines.

Make Soap Scent Last Longer

To create longer-lasting fragrances in soap, it is recommended to blend essential oil fragrances that provide base, middle, and top notes. Scents are categorized into three notes: top notes, middle notes (heart), and base notes.

Top notes are the most volatile and evaporate quickly, while base notes are the least volatile and last longest. Middle notes evaporate at a moderate rate. Examples of top notes include citrus and floral scents, while wood, resin, and spice scents are typically base notes. Middle notes are commonly herbs and grasses.

For instance, lemon essential oil (EO) is a top note, while lemongrass essential oil is a lemony-scented middle note. When blended together, the overall scent will last longer due to the lingering aroma of lemongrass even after the lemon EO scent has faded. Adding a base note, such as patchouli essential oil, will further extend the fragrance's longevity, as the scent will still be noticeable months after the lemon and lemongrass scents have faded. By blending essential oils with different evaporation rates, longer-lasting fragrances can be achieved in soap.

To increase the longevity of scent in soap, it is suggested to opt for melt-and-pour (M&P) or hot process (HP) soap rather than cold process (CP). In M&P and HP soap making, fragrance is typically added towards the end of the process, when the soap is cooling down, which means that the scent is not exposed to active lye and therefore does not evaporate as much. This results in a stronger and longer-lasting scent in the finished soap.

On the other hand, fragrance must be added to CP soap near the beginning of the soap making process, when the lye is still active and the soap is warm. This prolonged exposure to lye and heat can cause the fragrance to evaporate more quickly, leading to a weaker scent over time. To compensate for this, more fragrance is often added to CP soap compared to M&P or HP soap.

To preserve the scent of soap during storage, keep it in closed containers that limit evaporation. While soap is curing, it needs air circulation to allow for water evaporation. However, after the initial curing period of 4-8 weeks, the soap can be stored in sealed containers for long-term storage.

How to Make Soap Fragrance Last Longer

Place a cotton ball infused with a few drops of fragrance in the storage container for a pleasant smelling experience when using the soap for personal use. However, this practice is considered controversial and potentially unethical if the soap is intended for sale. Adding a separate fragrance source to the container will result in a stronger scent on the outside of the soap, which can mislead customers into thinking the soap is more strongly scented than it actually is.

Use a fixative, also known as an "anchor," to slow down the release of scent and make it last longer in soap. While this may seem like a useful technique, it is also a controversial practice among experienced soap makers. Many claim that using a fixative does not significantly impact the longevity of scent and recommend other techniques like those mentioned above, you will find the answer of how to make soap scent last longer.

Soap makers often use powders with high surface area, such as arrowroot powder, powdered clays, and cornstarch, as fixatives to help the scent in soap last longer. These powders are added in appropriate amounts to the soap batter. Some soap makers mix the fragrance with the fixative material and let it sit for some time so the fragrance can be absorbed before adding it to the soap batter.

However, there is a common misconception that using an anchor as a scent fixative can make a weak scent smell stronger, which is not true. The purpose of using an anchor is to extend the life of a fragrance in soap, not to enhance its strength.

To maintain the appeal of your scented soap, it is important to use or sell it promptly before the fragrance obviously fades. You should plan your soap making activities according to the amount of soap you use or sell. This will help to keep your inventory moving and maintain the quality of your soap.

It is important to have realistic expectations about the longevity of fragrance in soap. New soap makers are often surprised when their preferred essential oils or fragrance oils fade quickly or do not smell as expected in soap. Even fragrances that start strong and have good lasting power will gradually fade over time, and very few will remain strong after a year.


Now you have knew how to make soap scent last longer. Be sure the fragrance or essential oil you're using has undergone extensive testing and has been given the go-ahead for use in soap for the optimum aroma retention. All of our fragrances are put to the test, and the descriptions of the essential oils and fragrance oils contain performance remarks. VedaOils offers some of the best and most premium quality essential oils and fragrance oils. These are guaranteed to make your soaps smell amazing for eternity!


Here are some frequently asked questions about How to Make Soap Scent Last Longer?

Q: How long does scented soap last?

A. The majority of commercially available soaps go bad within two to three years. Since essential oils and perfumes can get rancid or mouldy, natural or handcrafted soaps may go bad sooner than one year after production.

Q: What ingredients make soap last longer?

A. The liquid salt of lactic acid is sodium lactate. Typically, 1 teaspoon is added for every pound of oils to lye water that has been allowed to cool. Your bar will become much harder as a result, thereby extending the life of the shower.

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