Want to mix some fragrance with your soap? Or are you trying to make your soap by yourself to add your favourite smell to it but confused about how much fragrance oil to add.
It’s very a sensitive matter about using fragrance oil in soap. The IFRA (International Fragrance Association) specifies a rate to make a soap using fragrance oil.
But what is the right amount? This article reveals that along with other information required.
So keep reading till the end and prepare your soap with any perfume you want, such as bond no 9 TriBeCa.
How much fragrance oil can I add to the soap?
You need to check the total amount of fragrance to add to the soap. However, you should check the usage rate for every fragrance.
According to the IFRA, they allow 5%.
But on the other side, you can add more fragrance when IFRA (International Fragrance Association) permits.
Adding more fragrance, it’s optional. If you want, then you can add it. So, for an idea of the usage rate, you have to calculate how much you want to add fragrance to your soap.
Below, we’ve described the calculation or formula which is necessary for you.
Formula: usage rate * weight of soap = total amount of fragrance oil
For example: 5% (0.05) * 912 grams = 45.6 grams of fragrance oil
Overall this is the formula and here, gives an example to explain the total calculation.
Recommended fragrance amount for soap
Different processes have different amounts for adding fragrance to soap. Usage rate is an important part of fragrance retention.
If you want a strong fragrance, you can add 0.7 ounces of fragrance oil per pound of cold process soap. On the other hand, you can add 0.3 ounces of fragrance oil per pound for the melt and pour process. And more.
Even some fragrance is so strong that a small amount can create a big difference.
Such as English Rose fragrance oil. In that case, you don’t need to use 0.7 ounces per pound. Instead, adding a few ounces may serve your purpose. Remember, always try to maintain your preference.
Here are some names of soap and recommended fragrance oil amounts:
- Cold Process Soap: 0.7 ounces per pound
- Melt and Pour Soap: 0.3 ounces per pound
- Rebatch Soap: 0.4 ounces per pound
- Liquid Soap: 0.2 ounces per pound
How to Calculate IFRA Rates for Your soap?
First, you have understood the amount of soap. Usually, you can measure units in ounces. Even if your measurement is in grams, this process works as well.
Here we’ve given substitute grams for ounces.
Here, I want to make 3 pounds of soap, i.e. 48 ounces. [ Since 1 pound = 16 Ounces]
According to IFRA, there are several categories. For soap, it falls under Category 9.
For soap, the recommended percentage is 31.75%.
If we convert the percentage as a decimal, it’ll be 3175 decimal form.
So below given how much fragrance you can use and the calculation.
So, ounces of fragrance will be 48 * .3175 = 15.24 ounces
That is so high, according to the IFRA. Because the safe rate of adding fragrance oil is 5-6% at most.
Is fragrance soap harmful or good?
Well, is it harmful or not, a question for many. From some point of view, it can be harmful. But the most crucial factor is the measurement of fragrance oil. If the percentage remains under the specified rate by IFRA, it can be considered safe.
Though the IFRA rate declares how much you can add the fragrance oil, it depends on the ingredient. Some ingredients you use can be harmful to your skip through the soap.
Sometimes Fragrances may enter the bloodstream by the skin, posing health hazards such as cancer, organ toxicity, endocrine disruption, allergies, neurotoxicity and asthma and more. Also, some perfumes can induce allergies and contain phthalates, making them unsafe to use.
Conclusion
After all, if you want to make a bar of soap with fragrance oil, it is a must to know how much fragrance oil per pound of soap can be added?.
But don’t forget to follow the IFRA rate. If you follow their guideline, you can make soap without harm your skin. Remember, only their measurement rate is safe for skin, and it’s legal.
See more: How to Receive Payments Via PayPal
