The Fundamental Oil is an exceptional morpho-sculpting skincare developed with the Guerlain Spas expert facialists. After 20 years’ research, Guerlain has created Orchid Morpho-Peptideᵀᴹ technology, capable of reinforcing skin’s anchoring bonds required to maintain a youthful morphology¹. Infused with this technology, The Fundamental Oil delays the appearance of the structural signs of ageing.
The fruit of Guerlain’s formulation excellence, The Fundamental Oil offers comfort and efficacy in one.
It is 80% made up of a phase containing 20 precious oils, including revitalising orchid oleo-concentrate, and 20% of an active essence concentrated in Orchid Morpho-Peptideᵀᴹ technology.
Formulated with 98.3% naturally-derived ingredients², this alchemical balance creates skincare of incredible finesse. After shaking, its two phases blend together for a feeling of rapid absorption and intense skin nutrition with no greasy finish. As if plumped up from within, skin is visibly smoother and more toned.
Its crystalline texture is showcased at the heart of an amber bottle comprising at least 15% recycled glass.¹In vitro test on ingredient. ²Calculation based on the international ISO standard 16128, including water.

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