This Is Not a Blue Bottle 1/.5 vs 1/.8: Which One Should You Choose?

Histoires de Parfums has captivated fragrance enthusiasts with its literary-inspired collections, and the "This Is Not a Blue Bottle" line is no exception. With two concentrations—1/.5 and 1/.8—choosing between them can be puzzling. Both share the same name and olfactory DNA, yet they offer distinctly different experiences. In this comparison, we'll break down the differences in scent intensity, longevity, and overall character, so you can decide which blue bottle deserves a spot on your shelf.

Whether you're a collector or a newcomer to niche perfumery, understanding the nuances between 1/.5 and 1/.8 is key. We'll explore their compositions, performance, and how they fit into different occasions. By the end, you'll know exactly which concentration aligns with your preferences.

What Makes This Is Not a Blue Bottle Unique?

Before diving into the comparison, it's worth understanding the concept behind the name. Inspired by Magritte's famous painting "The Treachery of Images," This Is Not a Blue Bottle challenges perceptions of what a fragrance should be. The scent is built around a fresh, aquatic-woody accord with notes of sea salt, ambergris, and cedar. It's designed to evoke the sensation of a cool ocean breeze, making it a versatile choice for both day and night wear.

The line comes in two concentrations: 1/.5 (which roughly translates to an Eau de Parfum strength) and 1/.8 (a more intense Extrait de Parfum). The numbers refer to the concentration of perfume oils, with 1/.8 being significantly richer and longer-lasting. Both are housed in the iconic blue bottle, but their juice tells a different story.

• Tip: Try both on skin before committing, as the dry-down can differ based on your chemistry.

Scent Profile: 1/.5 vs 1/.8

At first spray, both concentrations share the same opening: a burst of salty, marine notes with a hint of citrus. However, the 1/.8 version feels denser and more rounded from the start. The 1/.5 is lighter and more transparent, allowing the aquatic notes to shine without overwhelming. As the fragrance develops, the 1/.5 retains a breezy, airy quality, while the 1/.8 deepens into a rich, ambergris-laced base with pronounced woody undertones.

The 1/.8 also introduces a subtle leathery facet that is barely perceptible in the 1/.5. This makes the 1/.8 feel more sophisticated and suited for evening wear or cooler months. In contrast, the 1/.5 is perfect for daytime, office wear, or hot summer days when you want a refreshing scent without cloying sweetness.

Longevity and Projection

One of the most significant differences between the two is longevity. The 1/.5 typically lasts 4-6 hours on skin, with moderate projection for the first two hours before settling into a skin scent. It's ideal for those who prefer a subtle fragrance that doesn't demand attention. The 1/.8, on the other hand, can easily last 8-10 hours or more, with a strong sillage that leaves a noticeable trail. If you want a fragrance that makes a statement and lasts through a long day or evening event, the 1/.8 is the clear winner.

However, the 1/.8's intensity can be too much for some, especially in enclosed spaces or during warm weather. The 1/.5 offers a more versatile wear that can be reapplied without becoming overbearing. Consider your lifestyle: if you need a signature scent that works from desk to dinner, the 1/.5 might be more practical. For special occasions or when you want to leave a lasting impression, the 1/.8 excels.

Which One Should You Choose?

Your choice ultimately comes down to personal preference and usage. If you value subtlety, versatility, and a fresh aquatic feel, the 1/.5 is an excellent option. It's easy to wear, forgiving, and perfect for daily use. On the other hand, if you crave depth, longevity, and a more luxurious experience, the 1/.8 delivers. It's a fragrance that commands attention and evolves beautifully throughout the day.

For those who are still undecided, consider starting with the 1/.5 and later adding the 1/.8 for special occasions. Or, if you're a collector, both are worthy additions to your wardrobe. Histoires de Parfums also offers discovery sets that allow you to sample both before investing in a full bottle.

• Tip: If you own the Blue discovery set, you can test both concentrations side by side.

Both This Is Not a Blue Bottle 1/.5 and 1/.8 are masterpieces in their own right. The 1/.5 is a breath of fresh air, while the 1/.8 is a deep oceanic dive. Whichever you choose, you're getting a thoughtfully crafted fragrance from a brand that celebrates artistry. Explore the full collection of Histoires de Parfums to find your perfect scent match.