This product is THE TRUTH! I don't recall ever using the old formula as many have mentioned is not the same. I recently came back to AG Hair personally and professionally. I went through a massive chemical service in March which left my curls highly compromised. I purchased this serum in hopes of repairing the elasticity and bring the bounce back to my curls and it did exactly that. I wasn't sure or crazy about the packaging. Great for the healthy hand line, not sure I love the aluminum tube. I do find I end up having to use more because of how it continuously seeps out when the tube is full; not as bad once it gets to the halfway point. With that being said, the product lasted a lot longer than I assumed it would while using it regularly. I must say consistency is key. Using it a couple of times will not give you the results you are looking for; you must keep at it regularly and follow up with the correct shampoo, conditioner and mask treatments to optimize the results you see.