Obtain dried rose hips. It is important to start with 100% dry hips, not fresh.
Fill a clean glass container 1 cup of dried rose hips
Combine 1.5 to 2 cups oil for every 1 cup of rose hips used. Pour oil of choice over the dried rose hips until the container is full. (A pint glass jar with 1 cup of rose hips can usually hold about 1.75 cups of oil)
Place a lid on the container, and store it at room temperature in a fairly cool and dark place for at least 2 weeks. Shake on occasion (optional).
After two weeks or longer, strain the solids from the oil. If your rosehips are at all fuzzy or hairy, I suggest lining a fine-mesh strainer (sieve) with a few layers of cheesecloth to filter it well. Place the strainer over a clean container, and then pour the oil and rosehips in to strain. Compost or discard the solids.
Store the finished rosehip oil in a cool, dry, dark location. Rosehip oil should stay good for 6 months or longer. Discontinue use if the oil gets moldy, rancid, cloudy, or develops a bad aroma. Rosehip oil can also be stored in the refrigerator to extend the shelf life up to a year or more.
Enjoy! Use your homemade rosehip oil as a daily facial moisturizer (only a few drops needed), as a massage or body oil, on problem areas, as part of your oil cleansing method, an ingredient in other homemade skincare recipes such as salve or soap, to condition and soften hair, as salad dressing or marinade, and more.