I’ve been using these three lip plumbers for several months. I didn’t buy them to go together and you definitely don’t need them all. The Nuetrogena one is my favorite. The small stainless steel beads in the tip of the applicator help to stimulate and massage the serum into the lips. I enjoy applying it and the peptides claim to help build collagen over time. There’s a slight although noticeable plumping where the lines/wrinkles in my lips settle. I then add the Physician’s Formula (slight tingle), my lip color and top it with the Lawless plumper that I really enjoy as a gloss. lipfiller glossplumper hydratinggloss walmartbeauty sephorabeauty targetbeauty LTKbeauty LTKfindsunder50 LTKfindsunder100