Formulation Analysis and Ingredient Alternatives

Based on the ingredient list provided, this product appears to be a water-based skincare formulation rather than a traditional perfume. The texture described as "oily" likely comes from the combination of humectants and glycols in the water base.

Here is a breakdown of your questions:

1. Unavailable Ingredients and Alternatives

• Propanediol: This ingredient is available (Product ID: 1337). It serves as a humectant, solvent, and preservative booster, and can replace ingredients like Propylene Glycol or Butylene Glycol.
• Opuntia Ficus-Indica Fruit Extract: The fruit extract was not found. However, Prickly Pear Seed Oil (Product ID: 9633) is available and comes from the same plant. While their functions differ (oil is an emollient, extract is often for skin conditioning), the oil might offer some related benefits or be used in a similar product type.
• Caprylhydroxamic Acid: This ingredient is available (Product ID: 7766). It functions as a broad-spectrum preservative booster.
• Sorbitan Caprylate: This specific ingredient was not found. It is typically used as an emulsifier or surfactant. You could explore other Sorbitan esters or suitable non-ionic emulsifiers available on the website as alternatives.
• Levulinic Acid: This ingredient was not found. It can act as a skin conditioning agent and has preservative properties, often used with Sodium Levulinate. Alternatives would depend on its role, but other broad-spectrum preservative blends could be considered if preservation was its primary function.

2. Base of the Formulation

The primary base of this formulation is Water. The "oily" feel likely results from the combination of humectants and solvents like Propanediol, Butylene Glycol, Pentylene Glycol, Panthenol, and Betaine. These ingredients contribute to a smooth, slightly viscous texture, especially in a concentrated water-based product like a rollerball.

3. Need for Preservatives

Yes, a preservative is absolutely necessary for this water-based formulation, particularly because it contains water and plant extracts, which are prone to microbial growth. Without a proper preservative system, the product would spoil quickly (within days or weeks).

The original formula includes Ethylhexylglycerin and Caprylhydroxamic Acid, which function as a preservative system or boosters. Caprylhydroxamic Acid (Product ID: 7766) is available and is recommended for use with other preservatives for full effectiveness.

To ensure product safety and a reasonable shelf life, you must use a tested, broad-spectrum preservative system. You can use Caprylhydroxamic Acid alongside a compatible ingredient like Ethylhexylglycerin or choose another suitable broad-spectrum preservative blend available on the website that protects against bacteria, yeast, and mold in water-based formulas.