“Propanediol?”Here!
Appears in 3 scanned products.
In personal care
A small organic molecule, often plant-derived from corn sugar fermentation, that is a clear, odorless liquid.
Why it’s used
Used as a humectant and solvent, helping products draw and hold moisture and helping dissolve other ingredients like fragrance and preservatives.
What the evidence says
We haven’t found a source for this one that you can open and check, so we’re not summarizing the evidence.
Look it up yourself
We would rather point you at the shelf than summarize something you can’t check. These are the same places we search:
- PubChem — what the substance is, chemically — names, synonyms and structure
- PubMed — every paper indexed by the US National Library of Medicine that names it
These are starting points, not our findings — we haven’t run them for you. A substance whose name is also an ordinary word (“Heart”, “Alanine”, “Water”) will return papers that are not about the ingredient at all.
Rumors
Propanediol increases penetration of harmful ingredients into the skin.
Supports — suggestivehealth and safety evidence
Measured as a biomarker.
- Safety Assessment of Alkane Diols as Used in Cosmetics (Industry review) · Funding not checked
Who’s saying this
- draxe.com — we couldn’t open the site to see who runs it
Propanediol helps skin absorb the other ingredients in a product, making them more effective.
Supports — suggestivehealth and safety evidence
Measured as a biomarker.
- Safety Assessment of Alkane Diols as Used in Cosmetics (Industry review) · Funding not checked
Who’s saying this
- Healthline — a publisher: health information publisher; part of RVO Health, backed by Red Ventures and UnitedHealth Group's Optum
How we know who this is
- “Healthline is a digital publisher and does not offer personal health or medical advice.” (their page)
- “Healthline is part of RVO Health, a company backed by Red Ventures and UnitedHealth Group’s Optum.” (their page)
Propanediol is good for acne-prone and oily skin because it removes excess oil and prevents clogged pores.
Not gradedhealth and safety evidence
Sources cited — no verdict reached.
What was measured is not yet noted.
- Propanediol (and) Caprylic Acid (and) Xylitol as a New Single Topical Active Ingredient against Acne: In Vitro and In Vivo Efficacy Assays (Peer-reviewed) · Funding not checked
Who’s saying this
- StyleCraze — a publisher: beauty and wellness content funded by ads, affiliate programs and sponsored content
How we know who this is
- “StyleCraze was founded in 2011 to serve as a one-stop destination for advice on beauty, health and wellness, and lifestyle.” (their page)
- “To help us maintain the resources needed to achieve this goal, we receive funding through advertisements, affiliate programs, and sponsored content.” (their page)
Propanediol moisturizes and hydrates the skin, reducing water loss.
Supports — suggestivehealth and safety evidence
Measured as a biomarker.
- Effects of 1,3-propanediol associated, or not, with butylene glycol and/or glycerol on skin hydration and skin barrier function (Peer-reviewed) · Funding not checked
Who’s saying this
- StyleCraze — a publisher: beauty and wellness content funded by ads, affiliate programs and sponsored content
How we know who this is
- “StyleCraze was founded in 2011 to serve as a one-stop destination for advice on beauty, health and wellness, and lifestyle.” (their page)
- “To help us maintain the resources needed to achieve this goal, we receive funding through advertisements, affiliate programs, and sponsored content.” (their page)
Propanediol can cause skin irritation or allergic reactions.
Supports — suggestivehealth and safety evidence
Measured as an outcome.
- Safety Assessment of Alkane Diols as Used in Cosmetics (Industry review) · Funding not checked
Who’s saying this
- StyleCraze — a publisher: beauty and wellness content funded by ads, affiliate programs and sponsored content
How we know who this is
- “StyleCraze was founded in 2011 to serve as a one-stop destination for advice on beauty, health and wellness, and lifestyle.” (their page)
- “To help us maintain the resources needed to achieve this goal, we receive funding through advertisements, affiliate programs, and sponsored content.” (their page)