Ingredient review
Dechloro Ethylcloprostenolamide
INCI: DECHLORO ETHYLCLOPROSTENOLAMIDE
A synthetic ingredient that may boost eyelash growth but carries significant irritation and safety concerns, including potential eye and skin reactions.
In plain English
Dechloro ethylcloprostenolamide is a lab-made chemical similar to prostaglandins, which are natural substances that can affect hair growth. In cosmetics, it's added to eyelash and eyebrow serums with the goal of making lashes look longer, thicker, and darker. However, because it's a potent compound, it can cause redness, itching, darkening of the eyelid skin, and even changes in eye color or vision. It's not approved by the FDA for cosmetic use, and many experts advise caution.
Review score
Safety, usefulness, and evidence
Higher-caution ingredient
The evidence base is still emerging, so marketing claims deserve extra caution.
Main practical flags: irritation is high; clogging risk is low.
- Source
- synthetic
- Evidence
- emerging
- Irritation
- high
- Clogging risk
- low
Quick decision guide
Read the cautions before using
Dechloro Ethylcloprostenolamide can be useful, but watch for high irritation potential.
Plain-English read
Treat this as a practical screening step before you compare products that contain this ingredient.
- Step 1Start with the score, then check the irritation and clogging risk before judging Dechloro Ethylcloprostenolamide.
- Step 2Use the "Best for" and "Use caution if" sections to match the ingredient to your skin, not just to a marketing claim.
- Step 3If a product stings, breaks you out, or worsens irritation, judge the finished formula and stop using it even if the ingredient scores well.
Score terms in plain English
Irritation risk
highMore likely to cause dryness, stinging, peeling, or reactivity if used too aggressively.
Clogging risk
lowLess likely to feel heavy or contribute to clogged pores for most skin types.
Evidence level
emergingThe ingredient may be promising, but claims should be treated more cautiously.
What it is
A synthetic analog of prostaglandin F2α, modified to remove a chlorine atom, designed to stimulate eyelash growth by prolonging the hair growth phase.
How it works
It binds to prostaglandin receptors in the hair follicle, extending the anagen (growth) phase and increasing the number of hairs that are actively growing, leading to longer, thicker lashes over time.
Pros
Noticeable lash growth
Users often see visibly longer and thicker lashes within a few weeks of consistent use.
Convenient application
Applied like a liquid eyeliner along the lash line, making it easy to incorporate into a nightly routine.
Cons and cautions
Eye irritation risk
Common side effects include redness, itching, and burning of the eyes and eyelids, which can be uncomfortable and unsightly.
Potential for permanent changes
There is a risk of irreversible darkening of the iris (eye color change) and loss of fat around the eyes, leading to a hollowed appearance.
Best for
- Individuals seeking dramatic lash enhancement who are willing to accept potential side effects
- Those who have consulted a dermatologist and are using a regulated product
Use caution if
- Anyone with a history of eye conditions (glaucoma, uveitis, dry eye)
- Pregnant or breastfeeding women
- People with sensitive skin or allergies
Usage tips
Safety summary
Dechloro ethylcloprostenolamide carries significant safety concerns, including eye irritation, potential permanent iris color change, and periorbital fat loss. It is not regulated as a cosmetic ingredient in many regions, and its use should be approached with caution, ideally under medical supervision.
Research notes
Evidence is primarily anecdotal and extrapolated from studies on similar prostaglandin analogs used in ophthalmology. Peer-reviewed research on this specific compound is limited, and most safety data comes from prescription prostaglandin drugs.
Common label clues
- Typical concentration
- Typically used at very low concentrations (0.01% or less)
- Regulatory status
- Not approved by the FDA for cosmetic use; considered a drug ingredient in many countries when used for hair growth claims.
- Common uses
- Eyelash serums, Eyebrow treatments
- Environmental note
- As a synthetic compound, its environmental impact is not well studied, but it may persist in water systems if washed off.
Good to know
- This ingredient is often found in over-the-counter lash serums, but it is not approved by the FDA for cosmetic use.
- It is chemically similar to prescription glaucoma drugs like latanoprost, which were discovered to have lash-growing side effects.
Common questions
What is Dechloro Ethylcloprostenolamide in beauty products?
Dechloro ethylcloprostenolamide is a lab-made chemical similar to prostaglandins, which are natural substances that can affect hair growth. In cosmetics, it's added to eyelash and eyebrow serums with the goal of making lashes look longer, thicker, and darker. However, because it's a potent compound, it can cause redness, itching, darkening of the eyelid skin, and even changes in eye color or vision. It's not approved by the FDA for cosmetic use, and many experts advise caution.
What does Dechloro Ethylcloprostenolamide do in a beauty product?
It binds to prostaglandin receptors in the hair follicle, extending the anagen (growth) phase and increasing the number of hairs that are actively growing, leading to longer, thicker lashes over time.
Is Dechloro Ethylcloprostenolamide safe for most people?
Dechloro ethylcloprostenolamide carries significant safety concerns, including eye irritation, potential permanent iris color change, and periorbital fat loss. It is not regulated as a cosmetic ingredient in many regions, and its use should be approached with caution, ideally under medical supervision.
Who should be careful with Dechloro Ethylcloprostenolamide?
Anyone with a history of eye conditions (glaucoma, uveitis, dry eye) Pregnant or breastfeeding women People with sensitive skin or allergies
Research sources
Ingredient reviews are educational and are not medical advice. Patch test new products and ask a licensed clinician about persistent irritation, allergies, pregnancy-specific questions, or diagnosed skin conditions.