Improving Perfume Longevity and Sillage

You're looking to make your "brit for men" perfume last longer and project more. You're already using a high fragrance concentration (30%) and Flora fix.

The most critical step to improve performance, especially for homemade perfumes, is maceration (aging). After mixing, the perfume needs time for the ingredients to blend and stabilize. Store your mixture in a cool, dark place for at least 2-4 weeks, or ideally longer (months), gently swirling occasionally. This alone can significantly boost longevity and sillage.

If, after proper maceration, you still want to enhance performance, you can consider adding additional fixatives or base notes. These ingredients are heavier molecules that evaporate slowly, anchoring the fragrance and helping it last longer and project further.

Based on the search results, here are some ingredients known for their fixative or base note properties that could potentially help:

• Labdanum Absolute: This is a resinous material with a deep, ambery, leathery scent. Resinous absolutes are excellent natural fixatives. Adding a small amount can significantly improve longevity.
• Styrax Resinoid: Similar to Labdanum, Styrax is a resin with a sweet, balsamic, slightly spicy aroma. Resinoids are effective fixatives.
• Vetimoss: This likely refers to a material with vetiver and mossy characteristics. Vetiver is a classic base note in perfumery, known for its earthy, woody scent and excellent fixative qualities. Mossy notes also contribute to the base and longevity.
• Delta-muscenone: This is a type of synthetic musk. Musks are widely used in modern perfumery not only for their clean or animalic scent profiles but also because they are superb fixatives and can enhance the diffusion (sillage) of a fragrance.

How to use them:

If you choose to experiment, start by adding a very small percentage (e.g., 1-5%) of one of these ingredients to a small test batch of your perfume. Adding too much can overpower the original fragrance or make it too heavy. Base notes and fixatives are potent.

Regarding Benzophenone:

Benzophenone was also in the search results. While it's listed, its primary function in perfumery is typically as a UV filter to protect the fragrance from light degradation, which helps maintain the scent's quality over time. It's not a traditional fixative for increasing the inherent longevity or sillage of the scent itself in the way base notes or resins are.

In summary:

1. Macerate your current mixture first. This is the most important step.
2. If needed after maceration, consider adding a small percentage (1-5%) of a fixative/base note like Labdanum Absolute, Styrax Resinoid, Vetimoss, or Delta-muscenone to a test batch.
3. Be aware that adding these will likely modify the original "brit for men" scent profile.

Regarding "bleu de chanel":

I do not have information on future product availability, including whether a "bleu de chanel" type fragrance oil will be stocked. You would need to check the shop's website or contact them directly for inquiries about new products.