This is a first-impression review based on receiving the product. I plan to update after I've had time to use it regularly in topical applications with a carrier oil.Out of the box, the Rootsar Frankincense Essential Oil makes a solid initial showing. The 4 oz amber glass bottle is a genuine plus in this category. Amber glass protects the oil from light degradation, and most competing oils at this size use the same approach, but the bottle here feels substantial and well-made. The included dropper works as expected for this type of product.The scent on first exposure is pleasant and authentically frankincense in character, with the warm, resinous, earthy quality you want from this oil. Nothing jumped out as synthetic or off. Whether that scent holds up in actual use, either in a diffuser or diluted with a carrier oil for topical application, is something I'll be able to speak to after more time with it.The listing claims organic sourcing and GC/MS purity testing, which are meaningful quality signals in the essential oil category where adulteration is a real concern. The oil is Boswellia Serrata, sourced from India, which is consistent and appropriate for that species. What Rootsar does not provide, at least in the materials I received, is easy access to the actual GC/MS batch documentation. The claim is there, but being able to verify it would strengthen buyer confidence considerably.On price, $23.49 for 4 oz is on the higher end of this category. Comparable 4 oz frankincense oils from well-established brands typically run $10 to $16. Rootsar may justify the premium through quality, but that is something I can only evaluate over time. At current pricing, it is a harder recommendation to make for buyers who are already familiar with this oil and have a trusted source.Who should consider this: buyers looking for a large-format frankincense oil who want amber glass packaging, a dropper included, and organic sourcing claims, and who are comfortable trying a newer brand at a premium price.Who should wait: buyers who want a confirmed Boswellia species, third-party lab documentation they can actually access, or the best per-ounce value in this category. There are more established options at lower prices. I will update this review after extended use.