Body lotion and massage oil are not the same texture, and they are used for different purposes. A typical lotion is lighter and absorbs into the skin fairly quickly. This massage oil is oil-based, so it remains on the surface for longer. That longer glide is the main reason it works well for massage: your hands do less dragging, and you do not need to stop constantly to reapply.
If you want a product that disappears into the skin almost immediately, this is not the right choice. If you prefer classic aromatic body oils with a smooth, even slip and a visible feel of oil during the session, it is a better fit. The oil also leaves the skin feeling softer and less dry after the procedure.
The lavender scent is another part of the difference. Lavender has a sweet-floral, lightly herbal and slightly fresh fragrance with a long tradition in bath and body rituals. People who choose this oil for evening self-massage or partner massage often do so because the scent supports a slower, more restful session, not only because they want skin care.
It is fine to combine this oil with your normal post-massage routine. Because it is not meant to be a daily moisturizer, you can still use a body lotion or cream later if your skin feels dry, though many people will not need to. Store the bottle tightly closed in a cool, dry place to keep the plant-oil base in good condition.