Vitamins B3, B5: the duo that strengthens skin and revives radiance

The skin is much more than a covering: it is a full-fledged organ, on the front line against external aggressions and variations in our environment. To keep it balanced, supple, and comfortable, it needs essential nutrients, especially vitamins. Among these, two stand out in clean and effective skincare formulas: vitamin B3 (niacinamide) and vitamin B5 (panthenol). Let's take a closer look at these active ingredients that support barrier function and skin comfort daily.

Why does skin need B vitamins?

The B vitamin complex plays a central role in cell metabolism: it supports energy production, contributes to the proper functioning of the nervous system, and, at the skin level, acts as a real support for hydration, protection, and radiance. In cosmetics, the most interesting are B3 (niacinamide) and B5 (panthenol), which complement each other perfectly in a simple and targeted skincare routine.

Niacinamide: a multi-purpose, stable, and compatible active ingredient

Niacinamide is now essential in cosmetics, and it's no coincidence. Extremely stable to heat and light, it is compatible with most active ingredients, making it easy to integrate into many formulas without risk of irritation.

Its key benefits:

• It regulates excess sebum without drying out the skin
  
  

• It tightens the appearance of pores
  
  

• It supports skin firmness and prevents the first expression lines
  
  

• It reduces redness and inflammation
  
  

• It strengthens the barrier function, limiting water loss
  
  

• It restores radiance to dull or tired skin
  
  

At Seasonly, niacinamide is the key ingredient in our Fatigue-Fighting Eye Serum. Known for its brightening action, it helps to fade pigmented dark circles and even out the eye contour. Combined with a caffeine extract with decongestant properties, it works synergistically to awaken the eyes and reduce signs of fatigue. Its ultra-fresh gel texture, combined with a cryo-metal tip, allows for targeted application and an immediate fatigue-fighting effect. The result: a brighter, smoother, visibly rested eye contour.

Panthenol (Vitamin B5): the soothing and hydrating ally

Often less publicized, vitamin B5 (panthenol) is nevertheless essential for the balance of sensitive skin or skin lacking comfort. It acts as a humectant: it attracts water and retains it in the epidermis, while soothing feelings of discomfort.

What it brings to the skin:

• Long-lasting and non-occlusive hydration
  
  

• An immediate soothing effect
  
  

• Support for skin renewal
  
  

• Valuable help in case of localized irritations, redness, or dryness
  
  

It is a key ingredient in our Fluid Cream, a moisturizing treatment formulated for normal to combination skin, enriched with vitamin B5 and acerola. Its light texture penetrates quickly, hydrates without a greasy effect, and immediately soothes, for comfortable and luminous skin all day long.

Niacinamide and panthenol: together, for stronger skin

This duo works particularly well in synergy: niacinamide acts on radiance, skin texture, and imperfections, while panthenol soothes, hydrates, and supports the barrier function. A technical, clean, and perfectly adapted duo for all routines, whether you have skin prone to redness, dehydration, or simply seeking comfort and regularity.