The picture above shows 3 different copper peptide powders - the darkest cobalt blue is ours, the other two were purchased and Amazon. As you can see, they are barely the same thing. The deep cobalt blue is correct and far superior in quality to the others. Our copper peptides are the best around. We do not sell it in powder form because the dilution rate is enormous to attain a usable level. Our chemist has mixed this solution to make it safer and easier for us to use. Honestly, I am not sure the competing products are actually copper peptides and I know our results are astounding. See for yourself! It's easy to add them to a non-acidic, non-Vitamin C cream or lotion~! The recommended percentage of AHK-Cu Copper Tri-Peptides to use in your custom formula is 2.5% to 5%. GROW YOUR HAIR!~ Be sure to add me to your favorites list! DIY Ingredient - Requires further mixing before use 30 ml AHK-Cu Copper Peptides Fluid will likely be packaged in amber plastic bottle like our keratin. AHK is the preferred form of copper peptides for hair growth serums. Use rate: 2.5%-5% Add to water soluble base / water phase See our Videos: ModelSupplies.tv Add to water phase Appearance is CLEAR to very, very light blue, but may appear clear when drawn up in pipet or dropper. There is a picture of the way the AHK Copper Peptides look in the jug when we get them - they appear dark blue, like the ocean. Just like the ocean, when you take smaller and smaller quantities to examine for color, the color becomes more clear. If a copper peptide product is a vivid blue, there is way too much AHK copper peptide in it, which can cause skin damage or there could be added blue coloring for marketing purposes. Both should be avoided. This ingredient has proven effects demonstrated in many of our products including, but not limited to: Rapid Brow, Rapid Hair, Rapid Nail, Recover Me Good for at least 1 year from date of purchase. Refrigerate unused portion. No need to refrigerate shampoo, conditioner or serum you create. AHK-cu Copper Peptides This is a DIY product that can be added at the recommended level to skin, hair and nail serums, creams or preparations. AHK Copper Peptides should be used at pH levels between 5-7, no lower than 5. For best results, do not use them with acidic preparations lower than pH 5, or with citric acid, ascorbic acid, alpha hydroxy acids, etc. You will be amazed at the results, I promise~! Check out my other items! Visit My Store! Be sure to add me to your favorites list!