Turnover Ampoule.

"If you want the most research-backed PDRN formula you can find, this is my number one recommendation, the Rejuran Turnover Ampoule, which includes 0.5% salmon-derived PDRN. Rejuran is the gold standard of PDRN injections, so with this you're getting good PDRN built off decades of data from their injections. It has a great ingredient list for a relatively affordable price, with niacinamide and licorice root extract for dark spots and hyperpigmentation, sodium hyaluronate, and it's fragrance-free. I've used it more at night than during the day because it's very hydrating, a little goes a long way, and every time I use it overnight my skin looks glowier and healthier in the morning. For the price point, given the company's history, the ingredient list, and the type of PDRN they use, this is definitely one of the best, if not the best."

"I bought the mini set from Rejuran, which has the original PDRN. There's still not real data behind PDRN, this ingredient just will not go away and we still don't have the data, but they're not only claiming it's an anti-aging ingredient, they say it can also help with irritation, and that's something I do need, so that's ultimately why I grabbed this. I don't love the packaging though, it's the same dropper style on the mini as the full size, and it almost looks like it's meant to resemble a needle. I might even grab another set like this in the sale, I'm contemplating it."

"The Rejuran Turnover Ampoule is derived from the same brand that made the Rejuran healer injectables, which are skin boosters used in office. It contains topical high purity PDRN for collagen rejuvenation and repair, and is really great for calming the skin, helping post-procedure, supporting your skin barrier, maintaining post-procedure results, improving hydration. [...] It's even suitable for sensitive skin and reactive skin types. It contains what they call CPDRN trademarked [...] at 0.5% basically derived from salmon sperm and it stimulates fibroblast activities, helping to promote collagen and improve elasticity. It also contains adenosine that enhances skin elasticity and reduces the signs of skin aging. [...] If you want to really use the OG, the most effective one that you can use at home that really mimics the in-office skin boosters from salmon sperm, this would be the one to get."