持久液，又稱持久噴霧，噴塗在陰莖龜頭溝溝處能夠起到延長性愛時間的效果，個別差勁的持久液會使人感覺到麻痺麻木。但配方好的持久液不麻木不影響快感，例如2H2D持久液，綠騎士持久液，黑金剛持久液，印度神油等等
NT$1,500.00 – NT$3,000.00
NT$1,899.00 – NT$4,699.00
NT$1,300.00 – NT$2,400.00
NT$1,500.00 – NT$3,000.00
NT$1,200.00 – NT$3,000.00
NT$1,000.00 – NT$2,000.00
NT$3,880.00 – NT$8,800.00
NT$1,500.00 – NT$3,000.00
NT$1,100.00 – NT$2,200.00
NT$1,100.00 – NT$3,200.00
NT$1,000.00 – NT$2,000.00
NT$1,100.00 – NT$2,200.00