goop Youth-Boost Peptide Serum — 1 fl oz hydrating anti‑aging serum with peptides & niacinamide for firmer, smoother skin

goop Beauty Youth-Boost Peptide Serum is a hydrating anti-aging serum that combines peptides, ceramides, niacinamide and marine actives to help reduce the appearance of fine lines, improve firmness, and support skin texture.

This lightweight 1 fl oz serum is formulated to address visible signs of sun damage and age-related changes by strengthening the skin barrier, improving moisture retention, and enhancing overall radiance. The formula layers performance ingredients—peptides for resilience, niacinamide for tone, ceramides and bifidus postbiotics for barrier health, plus plant and microalgae extracts for firming—while avoiding parabens, petroleum ingredients, phthalates, sulfates, silicones, and artificial dyes or fragrances. It’s cruelty-free and suitable for a wide range of skin types.

How quickly can I expect to see changes in my skin?

Some users notice initial improvements within a week, with more visible benefits developing over continued twice-daily use. Clinical evaluation showed measurable improvements in hydration, the look of redness and vascularization, and surface texture after six weeks of consistent application.

• Visible initial results reported in as little as seven days.
• Independent blinded evaluation showed improvement at six weeks.
• For best results, apply morning and night to cleansed skin before moisturizer.

Which ingredients address wrinkles, firmness, and tone?

The serum blends multiple active classes to target different concerns: peptides to support elasticity and volume, niacinamide to even tone and brighten, ceramides and bifidus postbiotics to reinforce the barrier, and phytoactives plus astaxanthin-rich microalgae for tightening and antioxidant support. Together these actives aim to smooth, hydrate, and improve the look of firmness.

• Peptides: help with elasticity and the appearance of lines.
• Niacinamide: works on tone, luminosity, and congestion-prone skin.
• Ceramides & bifidus postbiotics: restore moisture retention and barrier resilience.
• Phytoactives & microalgae: support a firmer, more lifted appearance.

How should I incorporate this serum into my routine?

Use the serum twice daily—apply a few drops to clean, dry skin after cleansing and before moisturizer or sunscreen. It layers well under creams and oils, and because it’s fragrance-free and formulated without common irritants, it’s compatible with many other actives like gentle retinoids or vitamin C formulas when introduced carefully.

• Morning: cleanse, serum, broad-spectrum SPF.
• Evening: cleanse, serum, moisturizer or treatment oil.
• Patch test new combinations if using strong exfoliants or prescription actives.

Is this serum suitable for sensitive or oily skin?

The formula is designed to suit a wide range of skin types, including dry, oily, and sensitive skin, because it emphasizes barrier support and hydration without harsh surfactants or fragrances. Its lightweight, non-greasy texture absorbs readily, making it appropriate for layering under other products.

• Fragrance- and dye-free to reduce irritation risk.
• Gluten-free and cruelty-free formulation.
• Non-comedogenic texture that suits many oily and combination types.

Who is this for: goop Beauty Youth-Boost Peptide Serum is aimed at anyone noticing early to advanced signs of aging, uneven tone, or moisture loss who wants a multifunctional, clean-formula serum. It’s suitable for people seeking barrier support and a firming boost without added fragrances or common irritants—ideal for those building a targeted anti-aging routine or reinforcing daily skin health.

Ingredients

Aqua/Water/Eau, Bifida Ferment Lysate, Carthamus Tinctorius (Safflower) Oleosomes, Glycerin, Niacinamide, Saccharomyces/Xylinum/Black Tea Ferment, Capryloyl Glycerin/Sebacic Acid Copolymer, Propanediol, Daemonorops Draco (Dragon’s Blood) Extract, Aloe Barbadensis (Aloe) Leaf Juice, Squalane, Haematococcus Pluvialis Extract, Acmella Oleracea (Spilanthes) Extract, Xanthan Gum, Triethyl Citrate, Sodium Benzoate, Sodium Levulinate, Potassium Sorbate, Salicylic Acid, Tocopherol, Carnosine, Gluconolactone, Ceramide Np, Saccharomyces Ferment Filtrate, Sodium Hyaluronate, Sodium Phytate, Citrus Limon (Lemon) Fruit Extract, Coriandrum Sativum (Coriander) Fruit Oil, Maltodextrin, Tetrasodium Glutamate Diacetate, 3-hexanol, Canarium Luzonicum (Elemi) Gum Nonvolatiles, Piper Nigrum (Pepper) Fruit Oil, Citric Acid, Heptapeptide-7, Lecithin, Boswellia Carterii (Frankincense) Oil, Citrus Aurantium Dulcis (Orange) Peel Oil, Commiphora Myrrha (Myrrh) Oil, Vetiveria Zizanoides (Vetiver) Root Oil, Zingiber Officinale (Ginger) Root Oil, Calcium Gluconate, Ferula Galbaniflua (Galbanum) Resin Oil, Limonene, Linalool.