Perfume Formulation and Storage

Regarding your perfume formulation and storage questions:

Formulation Calculation

You asked if mixing 27 ml of head perfume, 54 ml of alcohol, and 8.1 ml of Fix results in a 10% fixation. Let's calculate:

The total volume of your mixture is 27 ml + 54 ml + 8.1 ml = 89.1 ml.

The percentage of Fix in the total mixture is (8.1 ml / 89.1 ml) * 100% ≈ 9.09%.

So, your calculation of 8.1 ml of Fix results in approximately 9.09% fixation, not exactly 10%.

To achieve exactly 10% fixation, if the head perfume and alcohol remain at 27 ml and 54 ml (total 81 ml), the amount of Fix needed would be 9 ml. This would result in a total volume of 90 ml (27 + 54 + 9), and the Fix percentage would be (9 ml / 90 ml) * 100% = 10%.

As the staff mentioned, it is highly recommended to use grams instead of milliliters for more accurate measurements in formulations, as volume can change with temperature.

Storage and Usage

Regarding storage, the staff's advice is correct. You should store the mixed perfume away from heat and direct sunlight. Keeping it in a cool place is preferable to help maintain its quality and longevity.

After mixing the ingredients thoroughly until they are well combined, you can use the perfume immediately.