# The Peptide Skincare Guide

Detailed peptide skincare reviews, formula comparisons and ingredient guides. Compare fifteen brands and twenty-four face, eye and scalp products with sourced prices and clear evidence limits.

Educational editorial content; not medical advice. CoreAge Rx receives disclosed commercial placement.

## Brands
- [CoreAge Rx](https://peptideskincareguide.com/brands/coreage-rx-peptide-skincare-review/): A clinician-access model for peptide skincare, reviewed around disclosure, pharmacy information and recurring cost.
- [The Ordinary](https://peptideskincareguide.com/brands/the-ordinary-peptide-skincare-review/): Five separately reviewed peptide formulas: four facial serums and a dedicated eye-contour serum, with different ingredients, sizes and claims.
- [Medik8](https://peptideskincareguide.com/brands/medik8-peptide-skincare-review/): A premium peptide-serum brand whose detailed testing footnotes are more useful than its fastest-result headline.
- [Paula’s Choice](https://peptideskincareguide.com/brands/paulas-choice-peptide-skincare-review/): A useful serum-versus-moisturizer comparison within one brand, with recurring discounts that should stay separate from retail prices.
- [Biossance](https://peptideskincareguide.com/brands/biossance-peptide-skincare-review/): A hydration-centered copper-peptide option with a larger standard bottle and a clearly described supporting formula.
- [Skin Biology](https://peptideskincareguide.com/brands/skin-biology-peptide-skincare-review/): A copper-focused catalog where exact variant names, fragrance ingredients and purchasing details need careful checking.
- [NIOD](https://peptideskincareguide.com/brands/niod-peptide-skincare-review/): Two copper facial formulas and a separate eye serum, each with its own formula, package price and study context.
- [NEOVA](https://peptideskincareguide.com/brands/neova-peptide-skincare-review/): A copper-peptide and enzyme-focused brand best assessed through its complete moisturizer formulas and the limits of technology claims.
- [Naturium](https://peptideskincareguide.com/brands/naturium-peptide-skincare-review/): A peptide serum and a separate moisturizer, with different ingredient blends and package units that deserve their own comparisons.
- [The INKEY List](https://peptideskincareguide.com/brands/the-inkey-list-peptide-skincare-review/): An ingredient-led skincare brand represented here by its Peptide Moisturizer, with a modest bottle price and specific peptide-complex disclosures.
- [Drunk Elephant](https://peptideskincareguide.com/brands/drunk-elephant-peptide-skincare-review/): A premium skincare brand whose Protini moisturizer combines a multi-peptide formula, a refill option and manufacturer-reported study results.
- [OLEHENRIKSEN](https://peptideskincareguide.com/brands/olehenriksen-peptide-skincare-review/): A moisturizer-focused addition to the guide, with a multi-peptide formula, declared fragrance and a manufacturer study that needs a careful reading.
- [Peach & Lily](https://peptideskincareguide.com/brands/peach-and-lily-peptide-skincare-review/): A serum-and-moisturizer peptide range with distinct package sizes, disclosed copper ingredients and product-specific formula details.
- [Velvet Rx](https://peptideskincareguide.com/brands/velvet-rx-peptide-skincare-review/): A telehealth storefront with a GHK-Cu face cream from $169; the full formula, package size and purchase period are not established by the catalog card.
- [Shed](https://peptideskincareguide.com/brands/shed-peptide-skincare-review/): A telehealth provider with a copper-peptide scalp serum, reviewed separately from facial skincare and from unrelated hair-treatment formulas.

## Products
- [CoreAge Rx Bounce Back Copper Peptide Cream](https://peptideskincareguide.com/products/coreage-rx-bounce-back-copper-peptide-cream-review/): A provider-guided copper-peptide cream with a monthly starting price and formulation questions to settle before enrollment.
- [The Ordinary Multi-Peptide + Copper Peptides 1% Serum](https://peptideskincareguide.com/products/the-ordinary-multi-peptide-copper-peptides-1-serum-review/): A water-based multi-peptide serum whose copper ingredient and compatibility guidance are unusually easy to identify.
- [The Ordinary Multi-Peptide + HA Serum](https://peptideskincareguide.com/products/the-ordinary-multi-peptide-ha-serum-review/): A lower-priced multi-peptide option for readers who want to compare a copper-free treatment step.
- [The Ordinary Matrixyl 10% + HA Serum](https://peptideskincareguide.com/products/the-ordinary-matrixyl-10-ha-serum-review/): A focused Matrixyl serum that illustrates why an ingredient-complex percentage needs careful interpretation.
- [Medik8 Liquid Peptides Advanced MP Face Serum](https://peptideskincareguide.com/products/medik8-liquid-peptides-advanced-mp-face-serum-review/): A fragrance-free serum with a 13-peptide complex and several distinct manufacturer study endpoints to unpack.
- [Paula’s Choice Pro-Collagen Multi-Peptide Booster](https://peptideskincareguide.com/products/paulas-choice-pro-collagen-multi-peptide-booster-review/): A 20 mL peptide booster with separate single-purchase and subscription prices, plus an important ingredient-versus-product study distinction.
- [Paula’s Choice Pro-Collagen Peptide Plumping Moisturizer](https://peptideskincareguide.com/products/paulas-choice-pro-collagen-peptide-plumping-moisturizer-review/): A peptide gel-cream that may replace a moisturizer step instead of adding another serum to it.
- [Biossance Squalane + Copper Peptide Rapid Plumping Serum](https://peptideskincareguide.com/products/biossance-squalane-copper-peptide-rapid-plumping-serum-review/): A 50 mL copper-peptide serum where the hydrating base is central to understanding both value and claims.
- [Skin Biology Super Cop Cream](https://peptideskincareguide.com/products/skin-biology-super-cop-cream-review/): A regular-strength copper-complex cream with a detailed ingredient list, strong routine cautions and an unverified current price.
- [NIOD Copper Amino Isolate Serum 3 1:1](https://peptideskincareguide.com/products/niod-copper-amino-isolate-serum-3-1-1-review/): A 15 mL water-based serum with separate GHK-Cu and GHK disclosures and US-specific pricing.
- [NIOD Copper Amino Isolate Lipid 1% Treatment](https://peptideskincareguide.com/products/niod-copper-amino-isolate-lipid-1-treatment-review/): A squalane-rich nighttime balm that should be compared as a lipid treatment, separately from watery copper serums.
- [NEOVA Crème de la Copper](https://peptideskincareguide.com/products/neova-creme-de-la-copper-review/): A rich copper-peptide day cream with ceramides and enzyme-related marketing that needs careful interpretation.
- [Naturium Multi-Peptide Advanced Serum](https://peptideskincareguide.com/products/naturium-multi-peptide-advanced-serum-review/): A $25, 30 mL blend with a named copper peptide, Acetyl Hexapeptide-8 and a moisturizer-like supporting base.
- [The Ordinary Argireline Solution 10%](https://peptideskincareguide.com/products/the-ordinary-argireline-solution-10-review/): A focused water-based Acetyl Hexapeptide-8 serum, priced at $9.70 for 30 mL on the US storefront.
- [NIOD Fractionated Eye-Contour Concentrate](https://peptideskincareguide.com/products/niod-fractionated-eye-contour-concentrate-review/): A premium eye serum with a 15 mL package, an extensive peptide formula and manufacturer study footnotes that deserve close reading.
- [The INKEY List Peptide Moisturizer](https://peptideskincareguide.com/products/the-inkey-list-peptide-moisturizer-review/): An $18, 50 mL moisturizer with two named peptide complexes, a fragrance-free statement and a straightforward daily-cream role.
- [Naturium Multi-Peptide Moisturizer](https://peptideskincareguide.com/products/naturium-multi-peptide-moisturizer-review/): A $20 moisturizer in a standard 50 g package, with non-copper peptides, supporting emollients and an eight-week manufacturer study claim.
- [Drunk Elephant Protini Polypeptide Firming Refillable Moisturizer](https://peptideskincareguide.com/products/drunk-elephant-protini-polypeptide-firming-refillable-moisturizer-review/): A premium 50 mL gel-cream with a copper-containing peptide blend, a refill format and a study summary with a defined sample size.
- [OLEHENRIKSEN Strength Trainer Peptide Boost Moisturizer](https://peptideskincareguide.com/products/olehenriksen-strength-trainer-peptide-boost-moisturizer-review/): A $54 multi-peptide moisturizer with niacinamide, ceramides and declared fragrance; its study summary reports participant agreement over eight weeks.
- [Peach & Lily Copper Peptide Pro Firming Serum](https://peptideskincareguide.com/products/peach-and-lily-copper-peptide-pro-firming-serum-review/): A $49, 30 mL copper peptide serum with a brand-declared 0.2% copper peptide concentration and a separate subscription offer.
- [Peach & Lily Peptide Pro Firming Moisturizer](https://peptideskincareguide.com/products/peach-and-lily-peptide-pro-firming-moisturizer-review/): A $45, 50 mL peptide cream whose ingredient list includes Copper Tripeptide-1 and bergamot fruit oil, despite neither appearing in the product name.
- [The Ordinary Multi-Peptide Eye Serum](https://peptideskincareguide.com/products/the-ordinary-multi-peptide-eye-serum-review/): A $25, 15 mL eye-contour serum with several peptide ingredients, caffeine and niacinamide, reviewed separately from the brand’s face serums.
- [Velvet Rx GHK-Cu Face Cream](https://peptideskincareguide.com/products/velvet-rx-ghk-cu-face-cream-review/): A copper-peptide face cream advertised from $169, with concentration, complete ingredients, package size and subscription details still to verify.
- [Shed Copper Peptide Hair Serum](https://peptideskincareguide.com/products/shed-copper-peptide-hair-serum-review/): A GHK-Cu scalp product from $76.33 per month with a three-month commitment, covering both listings without assuming different formulas.

## Guides
- [How to read a peptide serum ingredient list](https://peptideskincareguide.com/guides/read-peptide-serum-ingredient-list/): A practical method for separating peptide identity, the moisturizing base and the questions a label cannot answer.
- [Copper peptides versus other cosmetic peptide families](https://peptideskincareguide.com/guides/copper-versus-other-peptide-families/): Why the peptide name and finished formula matter more than choosing a fashionable ingredient category.
- [Peptide creams versus serums: comparing the whole formula](https://peptideskincareguide.com/guides/peptide-creams-versus-serums/): Choose the job you need a product to do before deciding whether a serum or cream offers better value.
- [What a percentage on the front label actually refers to](https://peptideskincareguide.com/guides/peptide-percentages-explained/): A concentration claim can describe an ingredient, a supplied complex or a blend; those numbers cannot be ranked without context.
- [How to compare bottle sizes and price per milliliter](https://peptideskincareguide.com/guides/bottle-size-price-per-milliliter/): A simple calculation makes package prices clearer, provided the selected size and buying terms are genuinely comparable.
- [What before-and-after images and brand studies can establish](https://peptideskincareguide.com/guides/before-after-images-brand-studies/): A photograph, a questionnaire and a controlled trial answer different questions. Learn to keep those answers separate.
- [Fragrance, moisturizers and other ingredients that shape a formula](https://peptideskincareguide.com/guides/fragrance-moisturizers-supporting-ingredients/): The peptide may headline the bottle, but the rest of the formula often determines how useful it is in everyday skincare.
- [Peptides and retinoids: questions about combining products](https://peptideskincareguide.com/guides/peptides-retinoids-combining-products/): Compatibility advice belongs to the exact formulas and your treatment plan, rather than a universal rule about two ingredient categories.
- [How to evaluate wrinkle and firming claims](https://peptideskincareguide.com/guides/evaluate-wrinkle-firming-claims/): Define the promised outcome, identify the test and resist turning a cosmetic appearance result into a stronger medical claim.
- [Building a simple skincare routine without duplicating products](https://peptideskincareguide.com/guides/simple-routine-without-duplicates/): Give every step a specific role so a peptide product adds something useful instead of merely extending the routine.
- [Grams versus milliliters: compare skincare packages honestly](https://peptideskincareguide.com/guides/skincare-grams-versus-milliliters/): Why a 50 g jar and a 50 mL bottle cannot be treated as the same quantity in a unit-price table.
- [Peptide moisturizers: what changes from budget to premium?](https://peptideskincareguide.com/guides/peptide-moisturizers-budget-and-premium/): Compare three actual creams by package, supporting formula, peptide identity and study disclosure before judging the price.
- [Eye-area and face peptide products: what to compare](https://peptideskincareguide.com/guides/eye-area-versus-face-peptide-products/): Use the intended area, complete formula, package size and evidence to decide whether an eye product adds a distinct role to a routine.

## Publication
- [Research methodology](https://peptideskincareguide.com/methodology/)
- [Advertising disclosure](https://peptideskincareguide.com/advertising-disclosure/)