Ingredient review
Pantothenoyl Dipeptide-13
INCI: Pantothenoyl Dipeptide-13
A synthetic peptide that pairs vitamin B5 with amino acids to help strengthen the skin barrier and improve hydration, though research is still emerging.
In plain English
Pantothenoyl Dipeptide-13 is a lab-made ingredient that links pantothenic acid (a form of vitamin B5) with a small protein fragment (a dipeptide). In skincare, it's designed to help your skin hold onto moisture and maintain a healthy outer layer. Think of it as a helper that tells skin cells to produce more of the fats and proteins that keep your skin plump and protected. Because it's a peptide, it's often used in anti-aging products, but it's gentle enough for most skin types.
Review score
Safety, usefulness, and evidence
Potentially useful with some tradeoffs
The evidence base is still emerging, so marketing claims deserve extra caution.
Risk flags are low for most users, though the finished product can still irritate.
- Source
- synthetic
- Evidence
- emerging
- Irritation
- low
- Clogging risk
- low
Quick decision guide
Useful, but context matters
Pantothenoyl Dipeptide-13 is generally a lower-concern ingredient when the full formula suits your skin.
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 Pantothenoyl Dipeptide-13.
- 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
lowLess likely to sting, burn, or bother most users, though sensitive skin can still react.
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
Pantothenoyl Dipeptide-13 is a synthetic peptide ingredient created by chemically bonding pantothenic acid (vitamin B5) with a dipeptide (two linked amino acids). It belongs to a class of ingredients called 'peptides' that are used in skincare for their signaling properties.
How it works
Once applied to the skin, Pantothenoyl Dipeptide-13 is thought to mimic natural signaling molecules that encourage skin cells to produce more lipids (fats) and proteins that form the skin barrier. This helps reduce water loss (transepidermal water loss, or TEWL) and improves the skin's ability to retain moisture. The pantothenic acid component also supports skin healing and soothing.
Pros
Barrier support
Helps strengthen the skin's natural barrier, which can reduce moisture loss and protect against environmental stressors.
Gentle formulation
Low irritation and comedogenic risk make it suitable for sensitive and acne-prone skin types.
Cons and cautions
Limited evidence
Most research is preliminary or based on ingredient supplier studies; independent human trials are scarce.
Variable effectiveness
Results depend heavily on the overall formulation and concentration, so not all products with this ingredient will perform equally.
Best for
- People with dry or dehydrated skin looking for extra moisture support
- Those with sensitive skin who want a gentle barrier-strengthening ingredient
Use caution if
- Individuals with known allergies to peptides or vitamin B5 derivatives (rare)
Usage tips
Safety summary
Pantothenoyl Dipeptide-13 is considered safe for topical use at typical concentrations. It has low irritation and comedogenic potential, making it suitable for most skin types. As with any new ingredient, patch testing is recommended for those with very sensitive skin.
Research notes
Evidence for Pantothenoyl Dipeptide-13 is primarily from supplier-conducted studies and limited peer-reviewed research. It shows promise for barrier repair and hydration, but more independent clinical trials are needed to confirm efficacy.
Common label clues
- Typical concentration
- Typically used at 0.1% to 2% in leave-on formulations
- Regulatory status
- Generally recognized as safe for cosmetic use in the EU, US, and other major markets. No specific restrictions noted.
- Common uses
- Anti-aging serums, Moisturizers, Eye creams
- Environmental note
- Synthetic production reduces reliance on animal-derived or plant-based sources, but the environmental impact of peptide synthesis is not well documented.
Good to know
- This ingredient is often found in products targeting fine lines and dehydration.
- It is water-soluble and works well in serums and lightweight lotions.
Common questions
What is Pantothenoyl Dipeptide-13 in beauty products?
Pantothenoyl Dipeptide-13 is a lab-made ingredient that links pantothenic acid (a form of vitamin B5) with a small protein fragment (a dipeptide). In skincare, it's designed to help your skin hold onto moisture and maintain a healthy outer layer. Think of it as a helper that tells skin cells to produce more of the fats and proteins that keep your skin plump and protected. Because it's a peptide, it's often used in anti-aging products, but it's gentle enough for most skin types.
What does Pantothenoyl Dipeptide-13 do in a beauty product?
Once applied to the skin, Pantothenoyl Dipeptide-13 is thought to mimic natural signaling molecules that encourage skin cells to produce more lipids (fats) and proteins that form the skin barrier. This helps reduce water loss (transepidermal water loss, or TEWL) and improves the skin's ability to retain moisture. The pantothenic acid component also supports skin healing and soothing.
Is Pantothenoyl Dipeptide-13 safe for most people?
Pantothenoyl Dipeptide-13 is considered safe for topical use at typical concentrations. It has low irritation and comedogenic potential, making it suitable for most skin types. As with any new ingredient, patch testing is recommended for those with very sensitive skin.
Who should be careful with Pantothenoyl Dipeptide-13?
Individuals with known allergies to peptides or vitamin B5 derivatives (rare)
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.