What it is
In the register’s words: “Caprylyl Glycol is the diol.”
- EU register name (INCI)
- CAPRYLYL GLYCOL
- CAS number
- 1117-86-8
- EC number
- 214-254-7
What the register lists it for
These are the uses the European Commission’s CosIng register lists for Caprylyl Glycol in any cosmetic, hair roles first. They say why a maker might add it, not what it does in one formula, and they aren’t a safety rating.
- Hair conditioning
-
The register’s hair role for ingredients that make hair feel softer, smoother or easier to comb. Most conditioners, masks and leave-ins list several.
Register definition: “Enhancing the appearance and feel of hair. Leaving the hair easy to comb, supple, soft and shiny and/or imparting volume, lightness, gloss, texture, etc.”
- Emollient
-
Oils, butters and similar ingredients that make a surface feel soft and smooth. On hair they coat the strand; many plant oils carry this role.
Register definition: “Acting as lubricants on the skin surface providing the skin with a soft and smooth appearance.”
- Deodorant
-
Reduces or covers unpleasant smells.
Register definition: “Reducing and/or eluminating unpleasant odour. Contributing against the formation of malodour on body surfaces.”
- Skin conditioning
-
The register’s broad role for ingredients that keep skin in good condition. On a hair label it often sits beside a hair role, or marks a plant oil or extract.
Register definition: “Maintaining the skin in good condition.”
Where it sits on each label
US labels list ingredients from most to least, except that those at 1% or less may follow in any order. A name near the top is a large part of the formula. A label doesn’t mark where the 1% point falls, so further down, the order says little about how much is in it.
- Shampoos 6 labels First five names: 0 of 6 Shampoos without it
- Clarifying shampoos 7 labels First five names: 0 of 7 Clarifying shampoos without it
- Rinse-out conditioners 5 labels First five names: 0 of 5 Rinse-out conditioners without it
- Deep conditioners 6 labels First five names: 0 of 6 Deep conditioners without it
- Leave-in conditioners 5 labels First five names: 0 of 5 Leave-in conditioners without it
- Stylers 7 labels First five names: 0 of 7 Stylers without it
- Protein treatments 1 label First five names: 0 of 1 Protein treatments without it
Every label, product by product (37)
- OLAPLEX No.4 Bond Maintenance Strengthening Shampoo Shampoo 33rd of 78 names
- OLAPLEX Nº.4CURL Bond Shaper Hydrating Curl Shampoo Shampoo 31st of 62 names
- Ouidad Curl Quencher Moisturizing Shampoo Shampoo 24th of 37 names
- As I Am Coconut CoWash Cleansing Conditioner Shampoo 19th of 25 names
- SheaMoisture Jamaican Black Castor Oil Strengthen & Restore Shampoo Shampoo 24th of 27 names
- SheaMoisture Coconut & Hibiscus Curl & Shine Hair Shampoo Shampoo 23rd of 25 names
- PATTERN Cleansing Shampoo Clarifying shampoo 17th of 34 names
- Ouidad Water Works Clarifying Shampoo Clarifying shampoo 20th of 33 names
- Cécred Detoxifying Shampoo Clarifying shampoo 24th of 38 names
- Camille Rose Clean Rinse Clarifying Shampoo Clarifying shampoo 23rd of 34 names
- OLAPLEX No.4C Bond Maintenance Clarifying Shampoo Clarifying shampoo 41st of 55 names
- As I Am Curl Clarity Shampoo Clarifying shampoo 11th of 13 names
- Bounce Curl Gentle Clarifying Shampoo Clarifying shampoo 31st of 31 names
- tgin Triple Moisture Replenishing Conditioner Rinse-out conditioner 20th of 33 names
- Kristin Ess Moisture Rich Curl Conditioner Rinse-out conditioner 30th of 41 names
- SheaMoisture Coconut & Hibiscus Curl & Shine Conditioner Rinse-out conditioner 24th of 25 names
- SheaMoisture Jamaican Black Castor Oil Strengthen & Restore Conditioner Rinse-out conditioner 28th of 29 names
- Bounce Curl Super Smooth Cream Conditioner Rinse-out conditioner 34th of 34 names
- As I Am Hydration Elation Intensive Conditioner Deep conditioner 21st of 29 names
- Camille Rose Algae Renew Deep Conditioning Mask Deep conditioner 19th of 25 names
- The Doux THAT’S DEEP 5-Minute Deep Conditioner Deep conditioner 22nd of 25 names
- SheaMoisture Manuka Honey & Mafura Oil Intensive Hydration Masque Deep conditioner 22nd of 23 names
- Bounce Curl Ayurvedic Deep Conditioner Deep conditioner 33rd of 34 names
- SheaMoisture Jamaican Black Castor Oil Strengthen & Restore Treatment Masque Deep conditioner 34th of 35 names
- As I Am Leave-In Conditioner Leave-in conditioner 19th of 25 names
- SheaMoisture Coconut & Hibiscus Hold & Shine Moisture Mist Leave-in conditioner 21st of 25 names
- Camille Rose Curl Love Moisture Milk Leave-in conditioner 16th of 17 names
- Mielle Rosemary Mint Strengthening Leave-In Conditioner Leave-in conditioner 26th of 27 names
- SheaMoisture Jamaican Black Castor Oil Strengthen & Restore Leave-In Conditioner Leave-in conditioner 28th of 28 names
- Ouidad Curl Quencher Moisturizing Styling Gel Styler 21st of 38 names
- PATTERN Curl Gel Styler 25th of 38 names
- As I Am Curling Jelly Styler 14th of 19 names
- Bounce Curl Light Hold Creme Gel Styler 16th of 20 names
- The Doux BIG POPPA Defining Gel Styler 12th of 15 names
- Camille Rose Curl Maker Styler 17th of 18 names
- SheaMoisture Coconut & Hibiscus Curl Enhancing Smoothie Styler 24th of 25 names
- SheaMoisture Manuka Honey & Yogurt Hydrate + Repair Protein-Strong Treatment Protein treatment 22nd of 25 names
Each line runs from the first name on a label to the last; a dot is where this ingredient sits. Makers change formulas now and then; if the list on your bottle differs, go by your bottle.
Your next step
Other hair conditioning ingredients on these labels
- Glycerin 131 labels
- Panthenol 72 labels
- Cocos Nucifera (Coconut) Oil 69 labels
- Behentrimonium Methosulfate 38 labels
- Behentrimonium Chloride 34 labels
- Cocamidopropyl Betaine 34 labels
- Simmondsia Chinensis (Jojoba) Seed Oil 34 labels
- Biotin 17 labels
Updated · The name, numbers and uses come from the European Commission’s CosIng entry (CC BY 4.0); we write the uses in US spelling and put the hair ones first. The labels are each maker’s own. The order rule is the FDA’s Cosmetics Labeling Guide. All our sources are on the Sources page.