There is one promise the skin does not always keep: that of leaving imperfections behind along with adolescence. For many adult women and men, redness, enlarged pores, shine, and small recurring breakouts remain a constant presence well beyond their twenties—or appear unexpectedly for the first time in their thirties or forties. Biologique Recherche has devoted its latest innovation to this need: Sérum Vivant, the first serum from the Parisian Maison formulated specifically for persistent imperfections in adulthood, based on the science of the skin microbiome. It is now available at Yanabeauté, in the heart of Brera in Milan.
Imperfections in adulthood: a constantly growing phenomenon
For a long time, skin imperfections were associated mainly with adolescence, as a transitional phase expected to resolve with hormonal maturity. Over the past thirty years, however, the picture has changed: the phenomenon has affected an increasing number of adults, becoming a global problem that continues to grow, one that advanced aesthetics professionals encounter every day in the treatment room.
The stories we hear at the institute generally follow two paths. In the first, imperfections that appeared during adolescence do not disappear over time: they persist and recur regularly, often coinciding with the menstrual cycle, periods of stress, or seasonal changes. In the second, the skin remained clear throughout youth, and imperfections appear for the first time in adulthood, catching the person unprepared and disrupting a skincare routine designed for completely different needs.
Why adult blemish-prone skin differs from adolescent skin
Treating adult blemish-prone skin as though it were adolescent skin is one of the most common—and counterproductive—mistakes. Adult skin has its own characteristics that require a dedicated approach: redness, enlarged pores, shine, and discomfort in adulthood are associated with more fragile, sensitive skin, with a lower capacity for recovery than adolescent skin.
This is where many do-it-yourself routines stall: products designed for young, resilient skin often rely on aggressive, sebum-reducing active ingredients that, on adult skin, may weaken the skin barrier, heighten sensitivity, and trigger a vicious cycle of irritation and new imperfections. Adult skin calls for a more sophisticated balance: correcting without sensitizing, purifying without dehydrating, and rebalancing without attacking.
The science of the microbiome: the new paradigm in dermocosmetics
Biologique Recherche’s response to this challenge draws on one of the most promising frontiers in cosmetic research: the skin microbiome, the ecosystem of microorganisms that lives in symbiosis with our skin and safeguards its balance. A harmonious microbiome contributes to an efficient skin barrier and an even complexion; an altered microbiome, on the other hand, is associated with shine, redness, and recurring imperfections.
Sérum Vivant is based on the science of the microbiome and acts on persistent imperfections in adulthood without compromising skin tolerance. This is precisely what sets it apart from traditional approaches: not a war against the skin, but a rebalancing process that respects its ecology—an approach perfectly aligned with the Biologique Recherche philosophy, which has always been based on the personalized reading of the Skin Instant.
Sérum Vivant: a gentle, high-performance formula
Sérum Vivant is Biologique Recherche’s first serum dedicated to treating persistent imperfections, designed for adult skin, including the most sensitive skin. Like every creation from the Maison, it combines formulation rigor with a precise sensory identity.
Its sensory signature is iconic and unique: the serum’s distinctive color and fragrance note reflect the richness and complexity of its yeast-derived active ingredients—an ingredient of choice in the Biologique Recherche tradition, here harnessed in the service of skin balance.
The texture is light, watery, and slightly viscous, specifically designed for blemish-prone skin: it absorbs quickly, leaves a non-oily finish, and provides a comfortable sensation on the skin. This is far from a minor detail for anyone living with shine and having learned to distrust rich textures.
Proven efficacy that develops over time
Sérum Vivant underwent in vivo clinical testing with instrumental measurements, clinical scoring, and volunteer self-assessments. The results show progressive efficacy that builds day after day:
- −27% sebum on day 14 (instrumental measurement)¹
- +19% redefined texture on day 14 (clinical score)²
- −42% persistent imperfections on day 28 (clinical score)²
- −21% redness intensity on day 28 (clinical score)²
- −19% water loss on day 28 (clinical score)²
The last figure deserves emphasis: a serum designed for imperfections that at the same time reduces transepidermal water loss is concrete proof of an approach that corrects while strengthening the barrier, rather than sacrificing it. The volunteers’ self-assessments also confirm the experience: the vast majority reported less oily, more matte-looking skin as early as the first week, a smoother and more refined texture by day 14, and a more even complexion by day 28.³
¹ Instrumental measurement on 21 volunteers, twice daily. ² Clinical score on 21 volunteers, twice daily. ³ User test (self-assessment) on 21 volunteers, twice daily; the results represent the percentage of volunteers who agreed.
Who is Sérum Vivant for?
Sérum Vivant is intended for anyone who recognizes their skin in at least one of these situations:
- imperfections that never truly went away after adolescence and recur cyclically;
- imperfections that appeared for the first time in adulthood;
- shine and enlarged pores accompanied by sensitivity, redness, and discomfort;
- traditional anti-imperfection treatments that proved too aggressive, drying, or irritating;
- adult acne-prone skin seeking a barrier-respecting alternative.
Precisely because it is formulated for adult skin, including the most sensitive skin, Sérum Vivant can be incorporated into routines in which classic purifying serums were off-limits. As always, however, choosing the right product—and determining its dosage within the routine—requires a personalized skin assessment: this is at the heart of the Biologique Recherche method, and it is what we do every day at the institute. We also remind you that for severe or inflammatory forms of acne, a dermatologist remains the primary point of reference: professional skincare supports, but does not replace, medical care.
How to incorporate it into the Biologique Recherche ritual
Within the Maison’s ritual, the serum is applied after the skin-preparation phase—the phase involving the famous Lotion P50 products—and before the treatment cream. For intolerant and/or reactive skin, Biologique Recherche has also recently introduced Lotion P50T, where the T specifically stands for tolerance: a particularly interesting pairing for anyone dealing with imperfections on delicate skin, which we will be happy to assess together during a consultation.
At the institute, Sérum Vivant can also be incorporated into personalized facial treatment protocols dedicated to persistent imperfections and the management of acne-prone skin: an in-treatment-room program enhances and accelerates the results of the at-home ritual.
Where to find Sérum Vivant in Milan: at Yanabeauté in Brera
Sérum Vivant is now available at Yanabeauté, an advanced aesthetics institute and Official Biologique Recherche Partner at Via Mercato 5, in the heart of Brera in Milan.
Our advice is not to buy it “blind”: come to the institute for a personalized consultation with Yana or one of our Facialists. Together, we will assess your Skin Instant, determine whether and how Sérum Vivant can fit into your ritual—from cleansing to protection—and build a tailored program, potentially combined with the most suitable in-treatment-room services.
→ Book your consultation at Yanabeauté now
Or write to us or come and visit: we are open Monday to Friday from 9:00–20:30 and Saturday from 10:00–18:30.
Frequently asked questions about Sérum Vivant
Is Sérum Vivant suitable for sensitive skin?
Yes: it was designed for adult skin, including the most sensitive skin, and acts on persistent imperfections without compromising skin tolerance. During a consultation, however, we always check its compatibility with your Skin Instant and the rest of your ritual.
How long does it take to see results?
Efficacy develops over time: clinical tests show a reduction in sebum and a redefined texture as early as day 14, while reductions in persistent imperfections (−42%), redness, and water loss are measured on day 28. Consistency—two applications a day—is key.
Can I use it if I have acne-prone but also dehydrated skin?
This is one of the situations in which the serum is most interesting: its watery texture with a non-oily finish and the reduction in water loss observed in testing make it suitable for skin experiencing imperfections alongside a compromised barrier. The ideal combination with lotion and cream should, however, be determined case by case during a consultation.
Where can I buy Sérum Vivant in Milan?
At Yanabeauté, at Via Mercato 5 in Brera. Biologique Recherche products are distributed exclusively through authorized partners, and purchasing with professional guidance is the best way to achieve real results from your ritual.
Sérum Vivant marks a new step forward in the way adult skin imperfections are treated: no longer choosing between efficacy and gentleness, but expecting both. We look forward to welcoming you to Brera so you can discover it on your own skin.