Usufruct v. Commodatum

Article 562. Usufruct gives a right to enjoy the property of another with the obligation of preserving its form and substance, unless the title constituting it or the law otherwise provides. (467)

Article 1933. By the contract of loan, one of the parties delivers to another, either something not consumable so that the latter may use the same for a certain time and return it, in which case the contract is called a commodatum; or money or other consumable thing, upon the condition that the same amount of the same kind and quality shall be paid, in which case the contract is simply called a loan or mutuum.

Commodatum is essentially gratuitous.

Simple loan may be gratuitous or with a stipulation to pay interest.

In commodatum the bailor retains the ownership of the thing loaned, while in simple loan, ownership passes to the borrower. (1740a)