1. Runjie
The main components of Old Blue Moisturizing Emulsion are hyaluronic acid, VB6, taurine and VE, and its moisturizing degree is better than ordinary eye drops. There seems to be a little mint in it, so it will feel cold. Xinlan Runjie seems to have removed mint, and other ingredients have remained basically unchanged. Chondroitin sulfate is actually the monomer of hyaluronic acid.
I have used old blue to moisturize before, and the cold feeling is acceptable, which has a little soothing effect. I haven't tried the new Lan Runjie yet.
The components of Bai Runjie are close to physiological tears, the main components are similar to physiological saline, the rest are hyaluronic acid and boric acid, and the preservative is ethyl paraben. There is only sodium chloride on the buffer system, which is relatively simple compared with similar products. Suitable for people who have just finished eye surgery. The ingredients are simple, but the preservative is not mild enough.
weep
Alcon's second-generation product, artificial tears, replaced the former Yiran.
Ingredients: dextran 70, hydroxypropyl methylcellulose (HPMC-29 10), sodium borate and polyquaternary ammonium salt.
Yiran ingredients: 0.5% hydroxypropyl methylcellulose, benzyl alkylamine chloride.
You can see that dextran has been added to the tears, which has better water holding capacity. The preservative was replaced by PolyQuad, that is, polyquaternary ammonium salt, which was proved to have little damage to corneal epithelium by experiments.
3. Xiao Laiwei (Ruixin)
Main ingredients: 1% sodium carboxymethyl cellulose (CMC), water and electrolyte.
Preservative-free formula, one of two preservative-free products sold in China.
Is very suitable for dry eye, and has high treatment efficiency. It is the best formula in artificial tears. On the basis of balanced electrolyte formula, adding 1% cellulose is mild and efficient, and has strong moisture retention.
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