The invention relates to a single-use capsule for manufacturing a cosmetic product, comprising: a first deformable first compartment (1) comprising a first phase of a cosmetic product, a second deformable second compartment (2) comprising a second phase comprising a cosmetic product, a closed passage (4) connecting said compartments (1, 2) to one another, said conditioning compartments (1, 2) being sufficiently flexible, the outer wall of said passage (4) being sufficiently solid and the closure ( 5) of said passage (4) being sufficiently fragile, so that a mechanical pressure exerted by a hand can open said passage (4) while maintaining the seal of said passage (4), said passage (4), once opened, comprising a narrowing (4) between said compartments (1, 2), which is sufficiently narrow and sufficiently long, for a mechanical pressure exerted by one hand to transfer the contents of one of said compartments (1, 2) to the other , so as to shear said content out of said narrowing (4) homogenizing said mixture (6) to constitute a cosmetic product directly consumable by the end consumer. L'invention concerne une capsule, à usage unique, de fabrication d'un produit cosmétique, comprenant : un premier compartiment (1) déformable comprenant une première phase d'un produit cosmétique, un deuxième compartiment (2) déformable comprenant une deuxième phase d'un produit cosmétique, un passage (4) fermé reliant lesdits compartiments (1, 2) entre eux, lesdits compartiments (1, 2) de conditionnement étant suffisamment souples, la paroi externe dudit passage (4) étant suffisamment solide et la fermeture (5) dudit passage (4) étant suffisamment fragile, pour qu'une pression mécanique exercée par une main puisse ouvrir ledit passage (4) en conservant l'étanchéité dudit passage (4), ledit passage (4), une fois ouvert, comprenant un rétrécissement (4) entre lesdits compartiments (1, 2), qui est suffisamment étroit et suffisamment long, pour qu'une pression mécanique exercée par