Personally, rather than having to resort to hand injections, I like to administer injections evenly and cheaply in the factory format, so I have tried several of them. Rejuran Healer 2cc + Water Glow Injection 2 cc (Hicooks) - Rejuran alone hurts, but if I mix it with the Water Glow injection, it will be diluted and less painful. And since the amount has increased, I make sure to mix it with a watery glow. The new Rejuran version is definitely less painful if you mix it with a watery glow and use Hicooks. The effect of feeling less tight and brightening your skin tone lasts for about 3-4 weeks, but why...? I recommend Jube Look Jube Look 4cc (Hicooks) - Rejuran makes the inside feel moisturized, but Jube Look makes the skin firmer and improves skin texture, so I really like Jube Look. The effect seems to last longer than Rejuran, and Rejuran is 8 As for the level of pain, I was at 4-5 for Juve Look. It has a lot of capacity, so it gets to about 6-7 towards the end, so it's difficult, but it's bearable. Chanel MTS - It's just good for a week or two during a 100,000 won event, but it's a waste to spend more than that. Salmon injection (Hicooks) - It hurts the most out of all the skin boosters I've used so far, and even the girls who take care of it say salmon injections are the most painful. But the immediate effect is the fastest and the skin texture improves dramatically. But it lasts for a week...? It hurt so bad that it doesn't work with anesthetic cream. When lifting, it's used as a booster when under anesthesia. My skin is sensitive, but it regenerates quickly, so even with Hi-Cook, the downtime is only a day and a half, so I don't see much value in embossing, even on the same day. Is this the type that absorbs quickly with almost no embossing?