Description

Pure Propylene Glycol

Have you ever splashed on a hydrating mist or smoothed on a featherlight gel and thought, "It just drank right in"? No sticky aftermath, no heavy coat, just a cool, dewy quench-chances are, you've met Pure Propylene Glycol

Pure Propylene Glycol (PG) is a crystal-clear, moisture‑magnet humectant and high‑purity solvent; it's derived from propylene oxide, a hydration workhorse, not an anti‑ager or brightener, yet it crafts the instant surge of freshness and silky slip in countless serums, creams, and hair elixirs

The Sensory Secret: PG pours as a transparent, syrupy liquid, then the moment it meets skin it thins and glides; it spreads with a slick, cushioned slip, vanishes swiftly, and leaves behind nothing but a water‑light veil and a refreshed sensation; it draws moisture into the uppermost layers, creating that addictive "just quenched" plumpness-pure weightless hydration, zero oily residue

Format Note: Pure Propylene Glycol is a clear, water‑white viscous liquid-never a powder; if your project demands a solid humectant, look into powder‑grade Butylene Glycol or Sorbitol solutions

The Comedogenic Bright Spot: PG carries a comedogenic rating of 0; it's widely recognized as non‑pore‑clogging, making it a safe pick for facial mists, essences, and even breakout‑prone skin; unlike many emollient esters, it drenches skin with moisture while feeling airy and fresh-a perfect partner for active‑packed toners, clear serums, and lightweight lotions

Specification: 99.5%–100.5% (GC area %)

Sample Available

Test methods: GC, Refractive index, Water content, Specific gravity

Synonyms: PG, 1,2‑Propanediol, Propylene Glycol USP, Methylethyl glycol

MOQ: 1 KG | Package: 1kg/aluminum bottle, 5kg/plastic drum, 25kgs/plastic drum

Certificates: HACCP, ISO 22000, HALAL, GMP, Kosher available

Molecular Formula: C₃H₈O₂ | CAS: 57‑55‑6

Product Characteristics

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Appearance

A crystal-clear, water-white viscous liquid; essentially odorless, with a barely there clean sweetness

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Purity

≥99.5% by GC; ultra-low moisture and impurities, delivering relentlessly consistent humectant performance

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Viscosity

40–55 cP at 25°C; smooth, syrup-like flow that spreads with a cushioned, drag-free slip

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Specific Gravity

1.035–1.040; slightly denser than water, yet it melts into skin with zero weight

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Acid Value

≤0.1 mg KOH/g; exceedingly low acidity, safeguarding a gentle, non-irritating profile

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GMP Manufacturing

Hydration of propylene oxide; meticulously distilled and deionized for crystal transparency and top-tier purity

Benefits of Pure Propylene Glycol

01 Intense Humectant
PG draws and locks moisture into the upper layers, leaving a cool, dewy plumpness with zero weight; it quenches without greasing for an immediate soft, supple finish

02 Fast Penetrating & "Water‑Fresh" Feel
Smooth at 40–55 cP, it glides with a cushioned, velvety slip, vanishes in a flash, and creates that addictive "just‑hydrated" sensation-no sticky trace

03 Excellent Solvent for Water‑Soluble Actives
Dissolves niacinamide, allantoin, botanical extracts, and preservatives with ease, guaranteeing even dispersion and a crystal‑clear, uniform formula

04 Non‑Occlusive – Won't Suffocate Skin
Unlike heavy oils or petrolatum, PG never forms a stifling seal; it drenches skin in moisture while keeping it airy, ideal for breathable, featherlight formulas

05 Reduces Stickiness & Drag
Neutralizes the tack of glycerin, carbomer, or aloe vera, boosting slip and effortless glide in toners, essences, and lightweight lotions

06 Excellent Chemical Stability
A pure, saturated diol with low reactivity, it resists oxidation and microbial growth, delivering 36+ months of shelf reliability under proper storage

Production Process

creatine 1

Product Quality Advantage

≥99.5% Purity – a high‑assay humectant‑solvent, delivering flawless, batch‑to‑batch hydration and dissolving power

Low Acid Value – ≤0.1 mg KOH/g, slashing irritation risk and promising unmatched skin compatibility

Ultra‑Low Moisture – ≤0.1% water content, safeguarding crystal clarity and a preservative‑friendly, low‑water‑activity system

Extremely Low DEG – ≤10 ppm diethylene glycol, zero toxic impurity worry, comfortably surpassing the strictest pharmacopeia limits

USP/EP Grade Available – full monograph compliance, empowering your premium cosmetic, pharmaceutical, and food‑grade creations

cGMP Certified – full traceability, rigorous documentation, and total peace of mind for every shipment

Annual Capacity: 1,500 Tons | 15+ years of cosmetic raw material expertise

Professional ODM/OEM Services

Professional ODM/OEM Services
We deliver full‑spectrum OEM/ODM manufacturing, harnessing Pure Propylene Glycol (PG) as the hero humectant-solvent

① Finished Skincare & Cosmetics
Hydrating Face Toner at 5% PG, a water‑fresh splash that instantly quenches with zero tack;
Crystal‑Clear Niacinamide Serum boosted with 8% PG, superb active dissolution and a featherlight, radiant finish;
Oil‑Free Moisturizing Gel featuring 10% PG, cool cushioned glide and rapid absorption for a dewy, shine‑free look;
Leave‑On Hair Mist at 3% PG, smooth anti‑dryness detangling without heavy build‑up;
PG + Glycerin Super Quenching Essence, drenches parched skin with a burst of hydration, no sticky aftermath

② Formulation Support
Humectant synergy blending (PG + Glycerin + Propanediol), viscosity and slip fine‑tuning, active solubilization optimization, USP/EP documentation support

③ Additional Services
Third‑party certifications (Kosher, HALAL), regulatory dossier assistance (EU Cosmetic Regulation, USP‑NF/EP monograph compliance)

Export Certificates

Certificates HACCP ISO HALAL GMP Kosher RSPO

Why choose us

XI'AN LANDNUTRA CO., LTD. – your trusted creator of humectant & high‑purity functional ingredients, rooted in clarity, driven by formulation science, devoted to freshness without compromise

Strong Production Capability: 1,500‑ton annual capacity, 15+ years of hands‑on heritage, wholly owned facility

Leading Service: seamless ONE‑STOP OEM/ODM journey, from initial concept to final delivery

Quality Assurance: CQC‑certified enterprise, purity woven into every step

Broad Market: botanical extracts, cosmetic ingredients, functional actives – one integrated, reliable portfolio

Full‑Chain Expertise: 15+ years of high‑purity excipient and cosmetic raw material sourcing; cGMP‑certified facilities; complete in‑house OEM/ODM for toners, serums, and water‑based formulas; USP/EP‑grade supply chain; batch‑specific COAs covering GC purity, acid value, water content, and specific gravity; plus hands‑on formulation tech support for humectant synergy and active solubilization

FAQ

Q1: Is propylene glycol safe for skin?

A: Absolutely-it's one of the most rigorously evaluated humectants worldwide, recognized as safe by global regulatory and pharmacopeia bodies; non‑toxic, non‑sensitizing at typical use levels (1–20%), with a comedogenic rating of 0, making it a staple from sensitive‑skin toners to baby care; still, if you have a known hypersensitivity, a quick patch test is wise.

Q2: Does propylene glycol cause acne?

A: Not at all-with a zero pore‑clogging score, it won't block follicles or fuel breakouts; it's a water‑thin hydrator that drenches skin without a trace of oil, exactly why it's trusted for blemish‑prone, oily, and combination‑skin formulas; if anything, it makes gel moisturizers feel even airier and lighter.

Q3: What's the difference between Propylene Glycol and Butylene Glycol?

A: Propylene Glycol (PG) is a 3‑carbon diol, pulling intense moisture and dissolving actives like niacinamide with top‑tier efficiency; Butylene Glycol (BG) is a 4‑carbon diol, slightly less tacky with a marginally cooler skin feel; PG delivers stronger water‑binding power and preservative‑boosting punch at a sharper cost‑in‑use, while BG is sometimes picked for "cooling" claims; both are safe and non‑comedogenic, but PG remains the industry workhorse for maximum, long‑lasting hydration.

Q4: Is propylene glycol natural?

A: Traditional cosmetic‑grade PG is petrochemical‑derived, so Ecocert and COSMOS do not classify it as natural; bio‑based propylene glycol (from corn or sugar cane fermentation) does exist as a certified natural alternative; our standard USP grade is a high‑purity synthetic, so always confirm with your certifying body if your project requires a natural claim.

Q5: Is propylene glycol vegan?

A: Yes, entirely-PG is a synthetic molecule containing zero animal‑derived raw materials or by‑products; it fits seamlessly into vegan, vegetarian, and cruelty‑free formulations.

Q6: What concentration should I use in my formula?

A: Facial toners and mists: 2–5% for that instant splash of quench with no sticky aftermath; Serums and essences: 3–8% to dissolve actives flawlessly and deliver a silky, cushioned slip; Oil‑free gel moisturizers: 3–6% for cool, breathable hydration; Hair leave‑ins: 1–3% to detangle and draw moisture; As an active solubilizer (salicylic acid, allantoin, botanical extracts): 5–20%; Avoid exceeding 50% in leave‑on products to prevent stickiness or pulling sensation.

Test Item	Specification	Test Result	Conclusion
Appearance	Clear, colorless viscous liquid	Conforms	Pass
Assay (GC)	≥99.5%	99.8%	Pass
Acid Value	≤0.1 mg KOH/g	0.05 mg KOH/g	Pass
Saponification Value	140 – 160 mg KOH/g	152 mg KOH/g	Pass
Iodine Value	≤1.0 g I₂/100 g	0.4 g I₂/100 g	Pass
Water Content (KF)	≤0.1%	0.03%	Pass
Specific Gravity(20°C)	1.035 – 1.040	1.038	Pass
Refractive Index (20°C)	1.431 – 1.434	1.432	Pass
Diethylene Glycol (DEG)	≤10 ppm	<5 ppm	Pass
Heavy Metals (as Pb)	≤5 ppm	<2 ppm	Pass
Total Plate Count	≤100 cfu/g	<10 cfu/g	Pass

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