THC and CBD are both cannabinoids produced by the cannabis plant, and a product can contain meaningful amounts of each. When it does, the package usually prints a ratio. Leaf & Vine describes its own range as built from handpicked strains with higher CBD content, so this is a label most people meeting the brand will encounter.
What a ratio is
A ratio such as 1:1 or 2:1 states the relative quantity of the two cannabinoids in that product, conventionally CBD first. It is a measurement, taken by a state-licensed lab and printed on the certificate of analysis, not a category or a promise. A 1:1 product contains roughly equal amounts; a 20:1 product is overwhelmingly one of them.
Read the milligrams, not only the ratio
A ratio is relative and says nothing about scale on its own. Two products can share a 1:1 ratio and differ several-fold in how much of either cannabinoid they actually contain. The milligram figures are the ones that describe the product; the ratio only describes its shape.
The honest part
How any given person responds to a particular ratio varies between people and between products, and we are not going to tell you otherwise. We can tell you what is in the package, because that is measured. What it will do for you specifically is not something a label, or a website, can answer.
If you want a recommendation rather than a specification, ask the staff at the counter. They know what is actually on the shelf that day, which is more than any page written in advance can.
Where the numbers come from
Every batch is tested by a state-licensed lab and carries its own certificate of analysis. The figures on the package are that batch's measurements, not a range for the strain in general and not a target the producer aimed at. Two batches of the same product can differ, which is why the number is printed per batch rather than per product line.