Among the B vitamins, biotin (vitamin B8) remains one of the most discreet: little is said about it, but it is active everywhere. It helps the body extract energy from food, while supporting the production of keratin, the basic protein of the integumentary system (hair, nails, upper layer of the skin). The result...
Summer poses a triple challenge for the skin: record heat, intense sunlight, and ubiquitous air conditioning. Together, these factors accelerate transepidermal water loss (TEWL), weaken the skin barrier, and trigger latent oxidative stress. Understanding these mechanisms and responding to them methodically remains the only way to preserve elasticity, comfort, and radiance. 1. When...
An ancestral blend of tiare flower and coconut oil, Monoï de Tahiti is no longer just the scent of holidays: it is a complete skin and hair care product, protected by a designation of origin and now studied for its restorative properties. Discover its history, its strictly regulated production process, and its modern uses to understand why this...
Between UV rays, heat, chlorine from swimming pools, and sea salt, summer puts the skin through a daily marathon. The result: increased dehydration, oxidative stress, inflammation, and weakening of the skin barrier. Fortunately, some cosmetic ingredients act as effective shields, while others exacerbate the damage. Why does the hot season weaken the skin? A single exposure...
UVA rays penetrate clouds, glass, and our skin, triggering silent oxidation that causes wrinkles, spots, and loss of firmness. Faced with this constant danger, a new-generation molecule stands out: Diethylamino Hydroxybenzoyl Hexyl Benzoate (DHHB) is distinguished by its ability to form a...
Invisible, odorless, colorless: solar radiation seems harmless. However, every time you go outside without protection, you aggravate a subtle process: photoaging. Up to 90% of wrinkles and brown spots in fair skin are caused by ultraviolet rays, which are present even behind glass or when the sky is overcast. Understanding how they work allows us to put in place...
Tight skin, persistent redness, recurring eczema flare-ups...? A little-known plant from the Far East, Ophiopogon japonicus—known as «Japanese lily of the valley»—is gradually establishing itself as a key ingredient in soothing formulas. Rich in complex sugars and homoisoflavonoids, this root is fascinating for its ability to reduce inflammation and strengthen the skin barrier.
Nearly one in two people still bear the scars of acne in the form of brown spots, redness, pits, or bumps that can persist for years and undermine self-confidence. The good news is that dermatological research in recent years has clarified the mechanisms involved and identified effective strategies...
A single small molecule, naturally produced in the body, is enough to boost hyaluronic acid production, even out skin tone, and preserve cartilage flexibility. Yet N-Acetylglucosamine (NAG) remains little known to the general public. Discover how this amino sugar works deep down and how to incorporate it into your wellness routine. 1. What is N-Acetylglucosamine?…
Coffee grounds, grape seeds, apple peels: these everyday scraps too often end up in the trash. However, green chemistry shows that they contain antioxidants, fatty acids, and polyphenols that can rival the most advanced active ingredients. This is the challenge of cosmetic upcycling: transforming waste into...
Few ingredients have such a rich scientific background as Moringa oil, extracted from the seeds of Moringa oleifera. Behind its nickname, «tree of life,» lies a small tree native to India and Sri Lanka, now acclimatized to almost all tropical regions. Its oil is a remarkably stable lipid concentrate, capable of moisturizing...
Regardless of your skin type and climatic conditions, it is the subtle alchemy of cosmetic active ingredients that determines the real effectiveness of a skincare product. Deep hydration, spot correction, or wrinkle smoothing: each promise stems from a specific compound, validated by scientific testing. Take a look behind the scenes at these key molecules to understand...
While honey and royal jelly already have pride of place in many bathroom cabinets, another treasure from the hive is making a spectacular breakthrough: propolis is now establishing itself as one of the most widely documented dermocosmetic active ingredients of the last decade. Its polyphenols neutralize free radicals, while its flavonoids...
Whether they filter sweat, stop dust, or emphasize the slightest emotion, eyebrows do more than just frame the eyes: they set the scene. However, a few poorly calibrated gestures are enough to thin out the hairs, throw off the line, and slow down regrowth. By applying principles derived from hair biology and the latest practices...
Every spring, millions of pale pink petals are hand-picked in the Bulgarian valleys. In less than three hours, they are placed in large stills: it takes nearly 5,000 kg of flowers to produce just 1 kg of essential oil. Long known for its fragrance, Damask rose oil (Rosa...
They appear discreetly at the corners of the eyes, on the forehead, or around the mouth. Unlike age lines, dehydration lines are not permanent, but they reveal a fundamental imbalance in the skin: a lack of moisture. A clear definition of dehydration lines Dehydration lines are fine...
Often overshadowed by other skincare stars, niacinamide is back in the spotlight. Antioxidant, soothing, sebum-regulating... Its effects have been validated by research, and its clinical uses far exceed marketing promises. Here is a comprehensive overview of this versatile active ingredient. An essential vitamin for cellular integrity Niacinamide...
Dandruff is often perceived as a mere aesthetic nuisance. However, it can actually reveal a deeper imbalance in the scalp. Affecting nearly one in two people, mostly men, it can become a real headache in everyday life. Why does it appear? What are the biological mechanisms at work? And above all...
Tasmanian pepper, or Tasmannia lanceolata, is a plant native to the mountainous regions of southeastern Australia. Used for centuries by Aboriginals, both as a condiment and therapeutically in traditional medicine—especially for its antimicrobial and antifungal properties, which also allow it to be used as a preservative...
Insufficient sleep is not limited to concentration problems or persistent fatigue. It even shows up in the mirror, visibly altering the quality of the skin and hair. Chronic sleep deprivation affects the body's biological balance, of which the skin and scalp are the...
Among the often overlooked but scientifically promising cosmetic ingredients, arginine occupies a special place. Naturally present in the body, it participates in numerous biological processes and is attracting increasing interest from skin and hair care formulators. Why is this amino acid so highly prized today? What are its real benefits, its mechanisms of action, etc.?
Persistent redness, inflammatory pimples, sensitive skin: these skin symptoms can cause confusion between two common conditions, acne and rosacea. However, accurate identification is essential in order to adopt the appropriate treatment. Acne and rosacea: distinct conditions Location of lesions Acne mainly affects the face, but can also appear on the back, chest, and shoulders. Rosacea, on the other hand, is more common in the cheeks, forehead, and nose.
Essential to the body but not produced by it, vitamin E is now ubiquitous in cosmetic formulas, from antioxidant serums to repairing treatments for damaged hair. However, its action goes far beyond its role as an “anti-aging” ingredient. Antioxidant, healing, moisturizing, photoprotective... vitamin E is a true dermatological Swiss Army knife. What is vitamin E...
Did you know that behind the healthy, glowing appearance of skin lies a biochemical mechanism that is as fundamental as it is underestimated? Amino acids, those small molecules often overshadowed by more high-profile active ingredients, are nevertheless essential pillars of the skin's structure. They don't just nourish the skin: they build it, repair it, and protect it.
