Boí Thermal

Silessence Renascent Serum

The Boí Thermal elixir | 97% natural ingredients

  • Suitable for sensitive skin
  • Hypoallergenic
30 ml
CN.: 190716.5

It is one of the basic products that is essential to any beauty routine. Silessence Renascent Serum, our natural cosmetics facial serum, contains high concentrations of tamarind, white iris, chamomile and soy. And, of course, silica-rich hypotonic water. This results in the very best effects for your skin: moisturisation, anti-aging effect, antioxidant, purifying and firming.

The result? Silessence Renascent Serum regenerates and extra-moisturises. Redensifies. Improves skin elasticity and texture. Soothes and comforts the skin.

Facial serum is a cosmetic product characterised by its high concentration of active ingredients, rapid absorption and penetration.

Don’t forego our natural serum, your beauty elixir.

The high concentration of ingredients in our serum means that you only need a small amount when applying. The size of a pea should be enough. That’s why the serum you use is just as important as how you apply it.

It is essential that your skin is perfectly clean. We recommend the Cleanser Mousse for gentle yet deep cleansing and the Moisturizing Thermal Water to prepare your skin. If you use the Renascent Serum afterwards, you’ll have completed the Boí Thermal basic facial ritual.

Place a small amount of the serum on the pads of your fingers, gently rub the fingers of both hands together and apply the serum to the face, neck and neckline in the morning and at night prior to applying cream or lotion. Start by dabbing your fingertips against the centre of your forehead, your nose, chin, cheeks, neck and neckline. Always massage the face from the centre outwards. Your skin will absorb it immediately, making it completely ready for any subsequent treatments.

The ideal natural and hypoallergenic brand for sensitive skin

Boí Thermal is a natural and hypoallergenic brand that is suitable for sensitive skin and whose main active ingredient is the healing mineral water from Caldes de Boí. Water with ancient history, rich in trace elements, and a special and unique mineralisation.

The power of ingredients

0 %

Natural origin

Regenerates and provides extra moisturisation

White iris


Silessence Renascent Serum Ingredients
Silessence Renascent Serum



Products with more than 98% natural ingredients. Average for Boí Thermal cosmetics.
Percentage calculated according to ISO 16128 regulation on Natural Cosmetics.

Boí Thermal subjective evaluation results:

0 %*
Moisturises the skin
0 %**
Softer skin

* 83% of volunteers agree it moisturises the skin. ** 80% of volunteers agree it makes the skin feel softer.

Discover the Boí Thermal basic facial ritual

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