HOW TO USE:Add at `2-5%` to your base in the cool-down phase, or apply directly before moisturizer. Apple stem cell extract is used at low percentages — the published range is narrow. WHO IT'S FOR:For DIY formulators building a botanical-forward serum, and for anyone who prefers a plant-derived active alongside their peptides rather than a routine built entirely on synthetics. PAIRS WITH:Combines with any peptide booster and with hyaluronic acid in one base. Edelweiss extract is the natural companion if you are building a fully botanical antioxidant serum. HOW IT DIFFERS:A plant cell culture extract rather than a peptide, so it fills the botanical antioxidant slot in a formula. It adds a different kind of ingredient to a stack, not more of the same kind. WHAT TO EXPECT:Gradual changes in the look of skin tone and texture over 8 to 12 weeks. Malus Domestica fruit cell culture, INCI stated in full — because "stem cell" alone tells you nothing about what is in the bottle. PhytoCellTec Malus Domestica Apple Stem Cell Extract Recommended usage rate 2 to 5%..5 fl. oz. Blue Glass Dropper Bottle Apple Stem Cells for the most youthful-looking skin! PhytoCellTec Malus Domestica is an apple stem cell from a rare Swiss apple that helps your skin act and look younger. Apple Stem Cells contain phospholipids that nourish the face while smoothing out the look of fine lines and wrinkles. Phytocell Tec also keeps your skin taut and firm, just like a crisp apple. You can add this serum booster to your existing serum or make your own anti-aging lotions or skincare. Usage instruction guide and chart included with every order. INCI: Malus Domestica Fruit Cell Culture Extract (and) Xanthan Gum (and) Glycerin (and) Lecithin (and) Phenoxyethanol (and) Water. Compatible with Hyaluronic Acid, Retinol, Argireline, Syn-Ake, Snap 8, Inyline, Relistase, Pepha Tight, Juveleven, Uplevity, Regu-Age, Antarcticine, Teprenone, Dermafil, Matrixyl Synthe-6, Copper Peptide, Haloxyl, Edelweiss, Eyeliss, Eyeseryl, Syn Coll, Syn Tacks, Hyaluronic Acid, Vitamin C, and more. Step 1: Pick your ready-made base. Choose from Aloe Vera Gel, Ultra Hyaluronic Acid, Anti-Aging Regenerating Serum, Moisturizer, Lash & Brow, or Eye Cream. Step 2: Choose the serum boosters that target your skin's needs and desired concentration. Step 3: Blend all ingredients together, bottle & enjoy! Tips & Tricks: Add your formula to an airless bottle with a funnel. Sanitize your workstation, containers, and all utensils. Supercharge your face creams by adding additional signal peptides that target multiple skin conditions, such as the latest age-defying peptides for a timeless complexion that targets fine lines and wrinkles, creases, smoothing, collagen boosting, tightening, firming, hydrating, moisturizing, and antioxidants.