Collection: Biologique Recherche Targeted Serums

Frequently asked questions

• What are Targeted Serums, and how are they different from Quintessential Serums?

  Quintessential Serums are the foundation of a Biologique Recherche routine, each delivering concentrated actives for an everyday skin need like hydration or firmness. Targeted Serums are a newer generation of advanced formulas, made with phytobiological and biotechnological active ingredients, for specific imbalances your skin is going through right now, such as redness, sensitivity, dark spots or loss of firmness. They're designed to address both the causes and the visible effects of those concerns.

• Where do Targeted Serums go in my skincare routine?

  Apply them after cleansing, Lotion P50 and your Quintessential Serums, and before your crème. If you use a Biologique Recherche finishing serum, it goes on last, over your crème. In the morning, finish with SPF.

• Can I use a Targeted Serum with Quintessential Serums?

  Yes, they're designed to work together. Your Quintessential Serums cover your skin's everyday needs, and a Targeted Serum layered on top adds a focused treatment for your main concern. Most routines use one Targeted Serum at a time. Our estheticians can help you build the right combination.

• How do I get the best results from Serum PIGM 400 for dark spots?

  Use Serum PIGM 400 consistently and pair it with daily broad-spectrum SPF, since sun exposure is one of the main drivers of pigmentation. Many clients also use Lotion P50 PIGM 400 earlier in their routine for extra brightening support. Results build gradually over several weeks. For more tips, read Sun Spots, Dark Spots, and Hyperpigmentation: What Are They?

• Do I need to use a Targeted Serum forever?

  Not necessarily. Targeted Serums are designed for specific, often temporary, skin imbalances. Once your concern improves, our estheticians may recommend reducing how often you use it, switching to a different serum, or keeping it for maintenance. Your skin changes with the seasons and life stages, so we suggest reassessing your routine regularly.

• How should I store my Targeted Serums?

  Keep your serums in a cool, dry place away from direct sunlight and heat, and close the cap tightly after each use. A steamy bathroom or sunny windowsill isn't ideal. Refrigeration isn't required, but some people like keeping serums in the fridge for a cooling effect. Once opened, most Biologique Recherche products should be used within 3 to 12 months, depending on the product. Check the open-jar symbol on the packaging for the exact timeframe.