Bioeffect is only available in store

Bioeffect area at Le Bon Marché Rive Gauche

Beauty department, Ground floor of Le Bon Marché

From Monday to Saturday from 10AM to 8PM.
Until 8.45PM on Thursday.
Sunday from 11 AM to 8PM.

+33 1 44 39 80 00

Opening hours
Monday10:00 - 20:00
Tuesday10:00 - 20:00
Wednesday10:00 - 20:00
Thursday10:00 - 20:45
Friday10:00 - 20:00
Saturday10:00 - 20:00
Sunday11:00 - 19:45


BIOEFFECT was founded by three Iceland-based scientists, who developed a technology for creating novel, biorisk-free proteins in plants for use in medical research. The unique biotechnology behind BIOEFFECT is based on our understanding of the genetic language: we have translated the genetic instructions on how EGF cellular activator (Epidermal Growth Factor) is made, into the genetic dialect of barley. That way we can instruct the barley plant to make EGF in its seed, that is identical to the EGF in our skin, and which the skin understands as its own. The barley is grown in inert volcanic pumice and watered with pure Icelandic glacial water.

As we age, our bodies produce less and less EGF, a naturally occurring human protein, which accelerates skin cell renewal as well as the production of collagen and elastin. The skin grows thinner, the surface epidermis becomes duller in appearance and wrinkles begin to form.


By harnessing the proven anti-aging power of cellular activators, BIOEFFECT skin care products stimulate the skin‘s own renewal process. The cellular activators work as a natural signalling system between skin cells, effectively “switching on“ cell repair while maintaining the appearance of young andhealthy-looking skin. The discovery of EGF cellular activators earned Dr. Rita Levi-Montalcini and Dr. Stanley Cohen the Nobel Prize in Medicine in 1986.


Made by scientists in Iceland, our barley-grown EGF is uniquely pure. It’s grown in abundant, inert volcanic pumice in an ecologically-engineered greenhouse which has a negative CO2 footprint. We use natural geothermal energy and pure subterranean glacial water, and we do not test on animals.

The award-winning bestseller EGF SERUM is a powerful anti-aging serum, that restores your skin’s youthful radiance, minimizes signs of aging and rejuvenates the skin’s complexion.

The 30 DAY TREATMENT is an intensive anti-aging treatment with three different cellular activators: EGF, IL-1a and KGF. The treatment is specifically formulated as a highly concentrated boost to regular anti-aging skin care for use 1-4 times a year.

Combining the formidable power of barley-grown EGF with Hyaluronic acid and the free radical-fighting power of Ferulic and Azelaic acids, the EGF + 2A DAILY TREATMENT provides your skin with an age-defying defense system.

The refreshing, feather-light EGF EYE SERUM immediately rebalances moisture levels, leaving the skin around the eyes looking radiant and firm, while providing long term, anti-aging effects.

The EGF DAY SERUM is an advanced anti-aging serum specifically developed for daytime use. It delivers multiple anti-aging benefits, restores the skin’s moisture balance and provides a smooth finish, an ideal base for make-up application.

The body serum BODY INTENSIVE with a deeply hydrating formula has been created specifically for body concerns such as dryness and uneven tone, leaving the skin looking youthful, supple, and cared for.


It became clear we had to develop our own brand in order to offer the purest, most efficient formulation.

Dr. Björn Örvar - Fondateur et Directeur Scientifique