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hyaluronic acid needs time and a barrier to actually work. your serum absorbs and evaporates within minutes of applying it, especially overnight when your skin is losing moisture faster than any other time of day. the HA forehead halo creates a seal directly on your skin for 8 hours straight while your face doesn't move once. that's not a serum. that's a completely different mechanism. almost a year of this and i genuinely cannot go back to just a serum. #skintok #hyaluronicacid #antiaging #foreheadhalo #skincareeducation