They are not illegal to buy or own, but they are not approved for human use, so are not subject to the quality controls that govern pharmaceutical manufacturing
(1988), published in FEBS Letters, demonstrated that GHK-Cu significantly stimulated collagen synthesis, proteoglycan production, angiogenesis, and wound closure across multiple animal and cell models

Dietary ConsiderationsDairy/ Milk Free Gluten Free Soy Free Non-GMO Amount Per Serving2x Ashwagandha Ashwagandha 1300 mg Black Pepper Extract 10 mg 2x BPC-157 Rapid Pro Body Protective Compound (as BPC-157 Arginate Salt) 1000 mcg Salcaprozate Sodium (SNAC) 6 mg 3x Strength Calcium (from Calcium -Hydroxy -Methylbutyrate Monohydrate) 240 mg myHMB (-Hydroxy -Methylbutyrate) (from Calcium -Hydroxy Methylbutyrate Monohydrate) 2000 mg Epicatechin (Green Tea Leaf Extract) 400 mg PurpleForce Purple Tea Leaf Extract (Camellia Sinensis)(3% GHG) 100 mg AstraGin Root Extracts (Astragalus membranaceus and Panax notoginseng) 50 mg Senactiv Root Extracts 50mg [Panax notoginseng (root) and Rosa roxburghii (fruit)] (Astragalus membranaceus and Panax notoginseng) 50 mg Other Ingredients: Vegetable Capsule (Hypromellose), Rice Powder, Microcrystalline Cellulose, Vegetable Capsule (Hypromellose), Rice Powder, Microcrystalline Cellulose, Vegetable Capsule (Hypromellose) Dosage: Take 1 full sachet pack daily, at bedtime or with evening meal, or as recommended by your healthcare professional If pregnant, nursing, or taking prescription drugs, consult your healthcare professional prior to use

Bacteriostatic or sterile water both work depending on your experimental timeline and planned storage duration post-reconstitution
In June, the FDA overhauled the roster for the advisory committee