About / Fiona G

Fiona G writes the skin, hair and formulation coverage. She reads ingredient lists, safety reviews and the studies a brand cites, and reports what those studies establish — which is frequently narrower than the packaging suggests.

Where a claim rests on cells in a dish rather than skin on a person, or on twelve participants rather than a hundred, her pages say so in the same breath as the claim.

She does not tell readers what to put on their skin.

Written by Fiona G

• Gouri: The 'Liquid PCL' Injectable, Where It Is Approved, and Why PubMed Has No Study Under Its Name

  2026-10-20

• PDRN vs Peptides: Two Different Molecules, Side by Side, With the Evidence Counted the Same Way

  2026-10-20

• Radiesse Cost: The Last National Fee Figures, How Many Syringes the Trials Used, and Why the Numbers Stop in 2019

  2026-10-20

• Radiesse for the Jawline, Neck and Hands: Which Uses FDA Approved, What the Trials Found, and What Is Off-Label

  2026-10-20

• Radiesse: What Is in the Syringe, the Five Uses FDA Has Approved, and What the Trials Measured

  2026-10-20

• Ellansé: The Polycaprolactone Filler, Its US Trial Against Radiesse, and What 21 Papers Report

  2026-10-17

• Eyebrow Growth Serums: The One Large Brow Trial, Its 43% Placebo Response, and the Missing Peptide Studies

  2026-10-17

• Sculptra on the Neck, Chest and Hands: Off-Label Sites and the Studies Behind Them

  2026-10-17

• Sculptra Under the Eyes and in the Temples: What the FDA Label Says, and What the Studies Add

  2026-10-17

• Sunekos: Hyaluronic Acid Plus Amino Acids, Four Unreported Trials and One Name in PubMed

  2026-10-17

• CeraVe Skin Renewing Night Cream: Two Peptides at Positions 31 and 34 of 40

  2026-10-15

• KY19382 for Hair Loss: A Lab Molecule, Not a Peptide, With No Human Trial

  2026-10-15

• HArmonyCa: The Hyaluronic Acid and Calcium Hydroxylapatite Hybrid, and Where It Is Approved

  2026-10-15

• Radiesse Side Effects: What Four Trials Listed and What FDA Has Been Told Since 2023

  2026-10-15

• Sculptra Side Effects: Nodules, Papules and What Has Been Reported Since 2023

  2026-10-15

• “Botox in a Bottle”: What the Phrase Sells, What Is in the Bottle, and What the Trials Measured

  2026-10-14

• Collagen Face Masks: What Four Viral Masks Declare, and What “243 Daltons” Means

  2026-10-14

• How Long Does Sculptra Last? The Two-Year Claim and the Five-Year Data Behind It

  2026-10-14

• Hyperdilute Radiesse: What the Dilution Means, the One Approved Use, and the Trial Behind It

  2026-10-14

• Juvelook: What Is in the Vial, Where It Is Approved, and What 18 Papers Measured

  2026-10-14

• Biostimulators: What Counts as a Collagen Biostimulator, Which Are FDA-Approved, and What the Record Shows

  2026-10-11

• Collagen Injections: The Fillers That Were Made of Collagen, the One That Still Is, and the 'Collagen Stimulators' That Contain None

  2026-10-11

• Prostaglandin vs Peptide Lash Serums: How to Tell Them Apart on the Label, and What the EU's Safety Committee Concluded in 2026

  2026-10-11

• How Much Does Sculptra Cost? The Published Fees, the Vial Counts in the Trials and What Medicare Pays For

  2026-10-11

• Sculptra vs Filler: How a Collagen Stimulator Differs From Hyaluronic-Acid Fillers Like Juvéderm, Voluma and SKINVIVE

  2026-10-11

• ALASTIN Restorative Skin Complex: Seven Peptides in a Row, and a "Facial Fat" Claim the Wider Literature Reads the Other Way

  2026-10-06

• Olay Super Serum: What the "Collagen Peptide" on the Front Is on the Back, Read in Label Order

  2026-10-06

• Copper Uglies: What the Published Record Holds on the Copper-Peptide "Uglies"

  2026-10-06

• Sculptra Butt Lift: What the Label, the Studies and the FDA Reports Show About Sculptra on the Buttocks

  2026-10-06

• Sculptra vs Radiesse: Two Collagen Stimulators Compared on the FDA Record, the Particles and the Reports

  2026-10-06

• Acetyl Tetrapeptide-2: A Fragment of a Thymus Hormone, Two PubMed Papers and One Hair Trial

  2026-10-05

• Acetyl Tetrapeptide-5 (Eyeseryl): One Cell-Culture Paper, and a Second Life Inside Eye Injectables

  2026-10-05

• Peptide Booster: What the Word Means on a Label, and What Mixing One In Does to the Dose

  2026-10-05

• Peptides vs Ceramides: Two Ingredients With Evidence for Different Jobs

  2026-10-05

• Peptides vs Collagen in Skincare: A Size Problem, a Naming Problem and a Five-Letter Sequence

  2026-10-05

• Rejuran Turnover Ampoule: Where the DNA Sits, and What the Claims Rest On

  2026-10-04

• Rhode Barrier Restore Cream: Four Peptides in a Row, Three With No Published Study

  2026-10-05

• Korean Peptide Serums: Three Labels Read, and the Pattern They Share

  2026-10-04

• Peptide Neck Cream: Four Labels and Every Neck Study Read

  2026-10-04

• Polynucleotides for Under Eyes: Every Periorbital Study, Counted

  2026-10-04

• Drunk Elephant Protini Polypeptide Cream: What the Nine Peptides on the Label Actually Are

  2026-10-03

• Rhode Peptide Glazing Fluid: One Peptide, Ninth of 22, and What It Was Designed to Do

  2026-10-03

• Injectable Peptides for Skin: What Is Injected, What Is Approved, and What Has Been Tested

  2026-10-03

• PDRN Eye Cream: 12 Labels Read, and the Two Topical Studies Behind the Category

  2026-10-03

• Tanning Nasal Spray: What the Record Holds on Melanotan Through the Nose

  2026-10-03

• Medicube PDRN Pink Collagen Gel Mask: The Label, the Colour Change and One Contradiction

  2026-10-05

• SKINVIVE by Juvéderm: What the FDA File and the Label Actually Say

  2026-10-02

• Exosomes in Skincare: What 53 Ingredient Lists Actually Declare

  2026-10-02

• Tripeptide-29 (Collagen Tripeptide): Small Enough to Matter, Studied Mostly as a Drink

  2026-10-05

• PDRN Cream: What 45 Labels Declare, and What a Cream Can Change

  2026-10-02

• Anua PDRN Hyaluronic Acid Capsule 100 Serum: Where the DNA Sits on a 34-Ingredient List

  2026-09-30

• Nutrafol Women Ingredients: What the Label Declares, What It Hides, and the Trials Behind It

  2026-09-30

• Copper Peptides for Hair: Every Human Study, Counted and Read

  2026-09-30

• AHK-Cu: The Copper Peptide With One Hair Study, and Why It Is Not GHK-Cu

  2026-09-30

• What Is Sculptra? The Approval Record, the Trials and the Reports Behind a Collagen Stimulator

  2026-09-30

• Alpha-MSH and the Melanocortin Receptors: How Skin Is Told to Tan

  2026-09-28

• Exosomes for Hair Loss: What the Clinical Record Holds in 2026

  2026-09-28

• Palmitoyl Tripeptide-5 (Syn-Coll): The Collagen Claim and Its Five Papers

  2026-09-28

• Peptide Eye Patches: What the Trials Tested, and It Was Not the Gel Patch

  2026-10-05

• Tanning Injections: What Is Sold, and What Laboratories Found Inside

  2026-09-28

• Afamelanotide and Scenesse: The One Approved Melanotan, and What It Is Approved For

  2026-09-27

• Melanotan 1 vs Melanotan 2: Two Molecules, Two Approved Relatives, No Tanning Approval

  2026-09-27

• PDRN Serum: What 41 Ingredient Lists Show About the DNA in the Bottle

  2026-09-27

• Peptides for Loose Skin After Weight Loss: What Has Been Tested, and a Search Trap

  2026-09-27

• Skin Boosters: What the Word Covers, What Is Injected, and What Is Approved

  2026-10-02

• Silk Peptides: Sericin, Fibroin and What the Skin Trials Actually Tested

  2026-09-24

• Melanotan Side Effects: Every Published Case Report, Counted and Named

  2026-10-02

• PDRN: What It Is, Where It Comes From, and What the Trials Measured

  2026-10-03

• Polynucleotides for Skin: Longer DNA Chains, Small Trials and Four Retractions

  2026-09-24

• Tanning Peptides: What Melanotan Is, What Regulators Say and What Is Unknown

  2026-09-24

• Medik8 Liquid Peptides: Ten Peptides, a 30% Blend, and Where the 30% Sits on the Label

  2026-09-23

• Olay Regenerist Micro-Sculpting Cream: Three Peptides at Positions 9 to 11, and a Maker That Published Its Own Trials

  2026-09-23

• Glutathione for Skin: The Evidence by Route, Cream, Capsule and Drip Counted Separately

  2026-09-23

• PP405: Not a Peptide, and Its Posted Trial Results Hold No Hair Count

  2026-09-23

• KLOW Peptide Benefits: What the Skin Claims Rest On, Counted Component by Component

  2026-09-23

• Decapeptide-12: The Lumixyl Peptide, and a Record Mostly Written by Its Inventor

  2026-09-21

• Palmitoyl Hexapeptide-12: A Copy of Elastin's Repeat, and What That Signal Does

  2026-09-21

• Pentapeptide-18 (Leuphasyl): An Enkephalin Analogue With No Trial of Its Own

  2026-09-21

• Tetrapeptide-30: Zero Papers Under Its Label Name, Two Trials Under Its Sequence

  2026-09-21

• Peptides and Vitamin C: The Two Trials That Tested the Combination Properly

  2026-09-21

• Four Copper Peptide Serums, Four Ingredient Lists: What the Labels Declare

  2026-09-20

• Nonapeptide-1: Four Papers, and in the Main One It Is the Delivery Vehicle

  2026-09-20

• sh-Oligopeptide-1: A 53-Residue Growth Factor Declared as an Oligopeptide

  2026-09-20

• Peptide Night Cream: The One Trial That Tested One, and It Applied It Twice a Day

  2026-09-20

• What Peptides Do for Skin: Four Claims, and Where Each Has Been Measured

  2026-09-20

• Glow Peptide Before and After: Twenty-Five Registered Studies, and the Only One Measuring Appearance Is a Device Trial With No Results

  2026-09-19

• Hexapeptide-9: Three Records, and Two of Them Exist Because It Does Not Get Through Skin

  2026-09-19

• Peptide Serum for the Face: The Face Is the Only Body Site These Trials Used

  2026-09-19

• Peptides and Eczema: Eight Randomized Trials, and Only Two Put a Peptide on Skin

  2026-09-19

• Peptides for Skin Tightening: Three Literatures That Never Meet

  2026-09-19

• COSRX The Peptide Collagen Hydrogel Eye Patch: Four Peptides at Positions 31, 33, 34 and 39 of 41

  2026-10-05

• OLEHENRIKSEN Pout Preserve: Two Peptides That Look Like Matrixyl 3000 and Are Not

  2026-09-18

• Peptides for Acne: 1,411 Randomized Trials, One of Them a Peptide, and One Lab Ran It

  2026-09-18

• Peptides for Wrinkles: Seven Trials, and the Number That Travels Is the One a Person Guessed

  2026-09-18

• What Is in a Glow Blend: 50/10/10, and Why That Vial Is 87% Copper Peptide

  2026-09-18

• Naturium Multi-Peptide Moisturizer: Three Peptides Behind Niacinamide, and an 8-Week Study With No Headcount

  2026-09-17

• Skinfix Triple Lipid-Peptide Cream: A Barrier Formula Whose Peptide Is One Ingredient, and It Is Rice

  2026-10-05

• The Ordinary Multi-Peptide + HA Serum: Seven Peptides, Five Trade Names, and Where the Research Is

  2026-09-17

• The Ordinary Multi-Peptide Lash and Brow Serum: Four Peptides, No Prostaglandin, and a Thin File

  2026-09-17

• SYN-AKE (Dipeptide Diaminobutyroyl Benzylamide Diacetate): The Viper Story and the One Placebo Trial

  2026-09-17

• COSRX The 6 Peptide Skin Booster Serum: The Count Is Right, and One of the Six Is a Collagen

  2026-10-05

• How to Read a Peptide Ingredient List: The Name Is Not the Molecule

  2026-10-05

• Medicube PDRN Pink Peptide Serum: PDRN Is Not a Peptide, and It Is Not on the Label

  2026-09-16

• Rhode Peptide Lip Treatment: One Peptide, Seventeenth on a List of Twenty-Seven

  2026-09-16

• The Ordinary Multi-Peptide Serum for Hair Density: Two Peptides, and Caffeine Above Both

  2026-09-16

• Peptide Sunscreen: The Regulation Decides What the Label Can Say, Not the Peptide

  2026-09-15

• Peptide Toner: The Literature Is Three Records, and Two of Them Are a Scientist's Surname

  2026-09-15

• Peptides and Rosacea: In This Literature, the Peptide Is the Problem

  2026-09-15

• Peptides for Stretch Marks: 76 Randomized Trials Exist, and Not One Tests a Peptide

  2026-09-15

• Peptides vs Hyaluronic Acid: One Query Shape, Three Ingredients, and a Surprise in the Numbers

  2026-09-15

• How Long Do Peptides Take to Work? Every Trial's Clock, Read Off the Record

  2026-09-13

• Peptide Body Lotion: Five Papers, No Randomized Trial, and Skin That Is Not One Skin

  2026-09-13

• Peptide Cleanser: Three Trials, and in Two of Them the Cleanser Was the Control

  2026-09-13

• Peptide Hair Serum: Six Records, Five of Them About Something Else

  2026-09-13

• Acetyl Tetrapeptide-3: One Trial, No Placebo Arm, Three Actives

  2026-10-05

• Biotinoyl Tripeptide-1: Zero Papers Under Its Own Name

  2026-09-11

• Hexapeptide-11: The Best Mechanism Study in Cosmetic Peptides

  2026-09-11

• Myristoyl Pentapeptide-17: The Lash Peptide With No Literature

  2026-09-11

• TriHex (Tripeptide-1 and Hexapeptide-12): Best Designs, Smallest Numbers

  2026-09-11

• Peptides for Gray Hair: One Study, 15 Men, and the Wrong Endpoint

  2026-09-10

• Peptides for Hair Thickness: The Endpoint Almost Nobody Measured

  2026-09-10

• Peptides for Hair Growth in Men: The DHT Claim, Traced to Its Source

  2026-09-10

• Peptides for Hair Growth in Women: Who Was Actually in the Trials

  2026-09-10

• Palmitoyl Tetrapeptide-7: Five Papers, and Not One Tests It Alone

  2026-09-10

• Palmitoyl Tripeptide-1 (Pal-GHK): Eight Papers, No Trial of the Ingredient Itself

  2026-09-09

• Microneedling and Copper Peptides: The One Experiment That Measured It

  2026-09-08

• Peptide Eye Creams: The Only Category Where Peptides Out-Trial Retinoids

  2026-09-08

• Peptide Lip Treatments: What the One Trial Actually Measured

  2026-09-08

• Peptide Moisturizers: The Evidence Is Real, and It Is Not About Wrinkles

  2026-10-05

• Peptide Serum: The Word Has No Definition, and the Biggest Trial Was Retracted

  2026-10-05

• Peptide Shampoo: The Nine Papers, and What They Are Actually About

  2026-09-08

• Best Peptides for Skin, Ranked by Evidence

  2026-09-07

• What Not to Mix With Copper Peptides: The Evidence

  2026-09-06

• The Glow Stack: GHK-Cu, BPC-157 and TB-500, Counted

  2026-09-06

• Peptides for Skin and Hair: The Evidence Gap

  2026-09-06

• Peptides for Skin: The Whole Category, Counted

  2026-09-07

• Collagen Peptides for Hair and Skin: What the Trials Show, and Why a Drink Is Not a Serum

  2026-09-05

• Copper Peptides for Skin: What GHK-Cu Is, and What the Studies Show

  2026-09-05

• Argireline (Acetyl Hexapeptide-8): What the Trials Show, and the 10% Question

  2026-09-05

• Matrixyl, Matrixyl 3000 and Synthe'6: One Name, Three Peptides, One Trial

  2026-09-05

• SNAP-8 (Acetyl Octapeptide-3): The Supplier's Study, the 0.05% Solution, and What 10% Really Means

  2026-09-05

• Peptides for Hair Growth: What the Trials Actually Show (2026)

  2026-09-05

• Stress, Cortisol and Skin: What the Brain-Skin Axis Actually Does (2026)

  2026-09-05

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