Serum Vivant: Daily Care for Persistent Blemishes
A quintessential serum for blemish-prone skin built for adult acne and recurring imperfections that keep coming back.
For long-time fans of Biologique Recherche, Vivant has become a household name. Masque Vivant earned its cult following for one reason: it works, resetting skin that feels congested, oily, or out of balance.
Now, Vivant is moving beyond the mask. Biologique Recherche Serum Vivant brings that same focus on blemish-prone skin into a quintessential serum formula made for everyday use with particular attention to persistent blemishes and acne, excess sebum, and the health of the skin barrier.
What Is Serum Vivant?
Serum Vivant is a daily, all-over serum designed to visibly correct persistent blemishes while toning, balancing, and brightening the overall complexion. Where a spot treatment reacts to a single blemish, Serum Vivant works across the whole face, neck, and décolleté targeting the broader conditions (excess sebum, congestion, an imbalanced skin barrier) that make skin blemish-prone in the first place.
Formulated with prebiotic, postbiotic, and biomimetic technologies, it's built to do more than clear breakouts: it helps refine texture, even out tone, and restore a healthy, luminous glow without stripping or over-drying skin in the process.
Who Is Serum Vivant For?
- Persistent, recurring blemishes and adult acne
- Congested, clogged, or texturally uneven skin
- Excess sebum and an oily or combination complexion
- Dull or uneven skin tone in need of brightening
- Skin that looks and feels out of balance, reactive, congested, or fatigued
- Sensitive skin in need of a gentler alternative to traditional blemish treatments
Blemishes & Congestion
Visibly reduces persistent blemishes and helps clear congested, clogged-feeling skin.
Sebum & Skin Barrier
Regulates excess oil while supporting the skin barrier and microbiome, so skin feels balanced, not stripped.
Texture & Complexion
Refines the look of pores and uneven texture for a smoother, more even complexion over time.
Dull, Tired Skin
Restores radiance to congested or fatigued-looking skin for a healthier, more luminous glow.
Made For Blemishes That Keep Coming Back
Persistent blemishes can linger, return repeatedly, or appear in the same areas over time and in adulthood, the situation often gets more complicated. Skin may produce excess oil while still feeling dehydrated. It can look congested but react poorly to aggressive exfoliation. A routine that worked on a breakout in your teens may feel far too harsh years later.
"Instead of treating an individual blemish and moving on, Serum Vivant becomes part of your everyday routine."
Consistent morning and evening use helps address the conditions associated with recurring imperfections, including excess sebum and an imbalanced skin environment treating the underlying pattern, not just the symptom of the moment.
Serum Vivant vs. Masque Vivant: What's the Difference?
For existing Masque Vivant users, the two products have distinct jobs. Using one, the other, or both throughout your week depends on your personal needs but for those prioritizing blemish treatment, it's best to incorporate both.
Masque Vivant
Periodic, intensive care. A weekly reset for skin that feels especially congested, oily, or out of balance.
Serum Vivant
Daily maintenance. Helps maintain skin balance every single day, morning and evening, as part of your core routine.
Blemish Care Meets Microbiome Care
The surface of the skin is home to a community of microorganisms that forms part of its natural ecosystem known as your skin's microbiome. Keeping that environment balanced contributes to normal skin function and overall comfort, which matters when skin is already dealing with recurring blemishes or sensitivity.
Serum Vivant combines prebiotic, postbiotic, and biomimetic technologies as part of its approach to persistent imperfections. That gives the serum a broader role than simply removing oil from the surface of the skin, it's designed to help create a more balanced skin environment while still addressing the visible concerns that make someone reach for a blemish treatment in the first place.
Noteworthy Ingredients
Yeast Extract
The star of this formula. Yeast Extract helps support blemish-prone skin by supplying peptides, amino acids, and antioxidants that help maintain the skin barrier and promote a healthier-looking complexion.
Inulin
A plant-derived prebiotic that encourages the growth of beneficial microorganisms in your skin barrier. Anti-blemish treatments can typically be drying or irritating, the addition of Inulin ensures comfort for those with sensitive skin.
Polylysine
A naturally fermented ingredient that helps maintain a balanced skin surface by limiting the growth of unwanted microorganisms supporting clearer-looking skin and a more stable skin environment.
This trifecta helps support the skin barrier and microbiome while limiting the conditions that can contribute to recurring imperfections.
What Results Can I Expect Consistently Using Serum Vivant?
Serum Vivant was tested with 21 volunteers using the serum twice daily:
AFTER 14 DAYS
AFTER 28 DAYS
WATER LOSS AFTER 28 DAYS
That last number is meaningful because transepidermal water loss measures how much moisture escapes through the skin. Reducing it points to better moisture retention and a better-supported skin barrier relieving blemishes and acne without excess dryness.
How Do I Use Serum Vivant?
Cleanse First
Use Serum Vivant morning and evening after cleansing and toning with your Lotion P50. It can be layered with other serums.
Apply & Massage
Apply a few drops to the face, neck, and décolleté, then massage in with light upward movements until fully absorbed.
Pair With Masque Vivant
If you also use Masque Vivant, apply the mask after cleansing and P50 toning on treatment days, rinse thoroughly, then follow with Serum Vivant and moisturizer.
For blemish-prone skin, consistency matters more than applying a large amount. Serum Vivant is designed as an all-over daily treatment rather than a traditional spot treatment, helping manage persistent imperfections and overall skin balance over time.
If you have sensitive skin, we recommend exercising more caution with your use, as some ingredients can cause irritation. Use it once daily to start, to test how your skin responds to the formula.
Frequently Asked Questions
What makes Serum Vivant different from a traditional spot treatment?
A traditional spot treatment is usually applied directly to an individual blemish once it appears, with the goal of drying it down or reducing its visible size. Serum Vivant is designed for broader, ongoing care across blemish-prone areas, helping address recurring imperfections, acne, redness, and overall skin balance rather than reacting to one spot at a time. Because it's used consistently across the face, neck, and décolleté, it fits more naturally into a daily routine for persistent adult blemishes.
What results can I expect from consistent use?
In clinical testing, 21 volunteers using Serum Vivant twice daily saw a 27% decrease in excess sebum after 14 days, a 42% decrease in persistent blemishes after 28 days, and a 19% decrease in transepidermal water loss after 28 days indicating better moisture retention and a better-supported skin barrier.
Should I use Serum Vivant or Masque Vivant?
Masque Vivant provides periodic, intensive care, while Serum Vivant helps maintain skin balance every day. Using one or the other or both throughout your week depends on your personal needs, but for those prioritizing blemish treatment, incorporating both is ideal.
Is Serum Vivant suitable for sensitive skin?
Serum Vivant was formulated with Inulin specifically to help offset the dryness and irritation typical of anti-blemish treatments. That said, if you have sensitive skin, start with once-daily use to see how your skin responds before moving to twice-daily application.
Where can I buy Biologique Recherche Serum Vivant?
You can shop the full Biologique Recherche range online through www.paullabrecque.com, with fast shipping, generous free samples, and access to professional skincare guidance if you need help deciding how Serum Vivant should fit into your routine. You can also purchase in one of our skincare spas in New York City or Palm Beach, Florida.
Shop Vivant
Ready to build your persistent-blemish routine? Start here:
Sérum Vivant
The new daily serum for persistent blemishes, excess sebum, and skin barrier support. Featuring prebiotic, postbiotic, and biomimetic technologies.


Masque Vivant
The cult-favorite rebalancing mask that provides periodic, intensive care for congested, oily, or out-of-balance skin.
Shop Masque VivantMeet Your New Daily Blemish Ally
Sérum Vivant Now in Stock At Paul Labrecque
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