PMSoothe® Kava-Oil | Oil-Soluble Kava Extract for Sensitive Skin
PMSoothe® Kava-Oil is an oil-soluble kava (Piper methysticum) root extract standardized to Kavain ≥8000 ppm and Yangonin ≥1500 ppm, obtained by supercritical CO₂ extraction — a dual-target anti-irritation active for sensitive-skin and makeup-base formulas.
PMSoothe® Kava-Oil
PMSoothe® Kava-Oil is an oil-soluble Kava root extract active developed for cosmetic formulations targeting skin soothing, irritation care and visible signs of aging, including the appearance of fine lines and wrinkles.
Produced by supercritical CO₂ extraction under multi-indicator quality control, it keeps stable performance and an excellent sensory profile across different formulation systems — no precipitation, no discoloration — well suited to modern stability-focused skincare development.
At a glance
Item | Detail |
Product | PMSoothe® Kava-Oil |
INCI name | PIPER METHYSTICUM ROOT EXTRACT, CAPRYLIC/CAPRIC TRIGLYCERIDE |
Botanical source | Kava pepper root (Piper methysticum), South Pacific cultivar |
Extraction | Supercritical CO₂ extraction, dispersed in Caprylic/Capric Triglyceride (GTCC) |
Actives content | Kavain ≥8000 ppm; Yangonin ≥1500 ppm |
Full actives control | Six kavalactones controlled internally; two published as specification indicators |
Solubility | Oil-soluble liquid; also dissolvable in polyols (glycerin, propanediol, butanediol) |
Function | Anti-irritation; skin repair; supports anti-wrinkle formulas (evidence on sister product PMSoothe® Kava97) |
Recommended dosage | ≤10% in oil phase; 0.1%–0.5% typical for sensitive-skin formulas |
Key stability data | 85 °C / 10 min stable; 45 °C / 3 months stable; 4 °C / 6 months no solidification |
Safety data | 10% human patch test (30 subjects, 48 h, no adverse reaction); HET-CAM 1% non-irritating |
Water-soluble counterpart | PMSoothe® Kava97 (water-soluble powder) |
We already have PMSoothe® Kava97 (water soluble powder), it is highly popular in the cosmetics market due to its anti-irritation, skin repair, and anti-wrinkle properties. Some customers want oil-soluble kava extract, so we develop PMSoothe® Kava-Oil.
What are kavalactones?
PMSoothe® Kava-Oil (INCI: PIPER METHYSTICUM ROOT EXTRACT, CAPRYLIC/CAPRIC TRIGLYCERIDE; Product ID PMS0104) is an oil-soluble kava root extract standardized to Kavain ≥8000 ppm and Yangonin ≥1500 ppm. Used at 0.5%–2%, it blocks TRPV1 and action-potential signalling behind burning and itching.
In short: kavalactones are the main active compounds of kava — and the compounds responsible for its soothing effects in cosmetic formulations.
Kava (Piper methysticum) owes its activity to a group of lipophilic compounds called kavalactones (also written kava pyrones). Six major kavalactones have been identified as the primary active constituents: kavain, dihydrokavain, methysticin, dihydromethysticin, yangonin and desmethoxyyangonin. Their ratio — not any single compound alone — determines the performance of a kava extract.
This is why PMSoothe® Kava-Oil is specified by kavalactone content rather than "extract ratio": the published specification indicators are Kavain ≥8000 ppm and Yangonin ≥1500 ppm, while six kavalactones are controlled internally to keep batch-to-batch efficacy consistent. Because kavalactones are naturally oil-loving, an oil-soluble carrier keeps them dissolved and stable — the reason a kava oil form exists for cosmetic oils, W/O emulsions and makeup bases.
In short: PMSoothe® Kava-Oil is Plamed's oil-soluble kava extract, developed for brands that need broad, reliable anti-irritation in oil-phase and W/O systems.
Sensitive skin is a global problem. According to the China Sensitive Skin Diagnosis and Treatment Expert Consensus, about 36.1% of Chinese women have sensitive skin — roughly one in three. Prevalence is similarly high across other regions, making anti-irritation one of the most demanded functions in modern skincare.
One target is not enough. The mainstream anti-irritation target is TRPV1. But the TRPV family that senses external stimuli has six members, TRPV1 to TRPV6, each responding to different irritants (heat, capsaicin, mechanical force, oxidative stress, osmotic pressure and more). An ingredient that only targets TRPV1 is likely to miss irritation signals from the other five receptors.
A novel mechanism: block the common pathway. After years of research, Plamed found that Kava Pepper Root Extract can directly affect the transmission of stimulus signals — action potentials (AP) — generated by the activation of various TRPV receptors. Blocking the shared AP pathway delivers a broader and more reliable anti-irritating effect than single-receptor inhibition.
From Kava97 to Kava-Oil. Plamed's water-soluble PMSoothe® Kava97 is already popular for anti-irritation, skin repair and anti-wrinkle formulas. Some customers wanted an oil-soluble kava extract — so PMSoothe® Kava-Oil was developed on the same botanical source and quality logic, with the actives dispersed in a skin-friendly GTCC carrier.
Where does kava come from, and why is it used in skincare?
Kava has been consumed for 3,000 years in the South Pacific islands, where it is regarded as "sacred" by indigenous people and used in religious and cultural ceremonies. Kava is prepared as "Kava Wine" — considered the national drink — served to VIP guests, at important festivals and during formal discussions. It is considered a natural answer to stress, anxiety, depression and insomnia.
From tradition to verified cosmetics science. Plamed has conducted efficacy demonstration and mechanism-of-action research on kava for soothing sensitive skin, and in 2021 verified that kava can block neurotransmitter transmission — the research foundation behind both PMSoothe® Kava97 and PMSoothe® Kava-Oil.
Anti-Wrinkle Research: Exploring the Neural Mechanisms of Dynamic Wrinkles
PMSoothe® Kava-Oil is an oil-soluble Kava root extract developed for cosmetic formulations targeting skin soothing, irritation care and anti-aging applications. Beyond its soothing properties, Plamed's research has explored the potential of Kava-derived actives in addressing dynamic wrinkles through the regulation of neuromuscular signaling.
1. An Unexpected Observation: Visible Fine-Line Improvement in 5 Minutes
During the development of PMSoothe® Kava-Oil, an internal product evaluation revealed an interesting observation: a participant using a high-concentration (8%) formulation showed a visible reduction in facial fine lines after just 5 minutes.
Although this observation was not part of a formal efficacy study and did not represent typical commercial application concentrations, it attracted the attention of Plamed's R&D team and inspired further investigation into the potential of Kava-derived actives as natural anti-wrinkle ingredients.
Figure: Before-and-after comparison of facial fine lines following 5 minutes of application of an 8% PMSoothe® Kava-Oil formulation.
2. Understanding Dynamic Wrinkles: A Neural Approach to Anti-Aging
Unlike structural wrinkles primarily associated with collagen loss and skin aging, dynamic wrinkles are closely related to repeated facial muscle contractions triggered by neuromuscular signaling.
Plamed investigated the potential role of Kava root extract in regulating this process through several key signaling stages:
Neural Signal Initiation: In a neuronal cell model, 0.625% PMSoothe® Kava97 reduced intracellular calcium (Ca²⁺) levels by approximately 30%, suggesting reduced neural excitation.
Neurotransmitter Release: Further investigations indicated that PMSoothe® Kava97 could reduce acetylcholine release, potentially decreasing signal transmission between nerves and muscles.
Muscle Contraction: In a neuronal cell system, Myosin expression was reduced by 53% at a concentration of 0.625%, suggesting a potential effect on the muscle contraction process.
These findings provide a scientific basis for exploring Kava-derived actives in skincare formulations targeting the appearance of expression lines and dynamic wrinkles.
3. In Vivo Efficacy: Evidence from Human Skin Testing
To further investigate the anti-wrinkle potential of Kava-derived actives, Plamed commissioned a third-party human efficacy study on PMSoothe® Kava97.
The study involved 32 healthy women aged 30–50 and used a randomized, split-face design. A formulation containing 2% PMSoothe® Kava97 was compared with a base cream over 14 days.
Key findings included:
After 7 days: Crow's feet count decreased by 24.10%.
After 14 days: Crow's feet count decreased by 27.45%, while wrinkle volume decreased by 15.36%.
Skin Elasticity: Skin elasticity increased by 13.15% after 14 days.
These results demonstrate the anti-wrinkle and skin-firming potential of PMSoothe® Kava97 under the tested conditions.
4. Oil-Soluble Kava Actives for Anti-Aging Formulations
PMSoothe® Kava-Oil brings Kava-derived active ingredients into oil-based cosmetic formulations. Its oil-soluble properties make it suitable for facial oils, creams, balms and other oil-containing skincare systems.
For formulators exploring natural anti-wrinkle ingredients, PMSoothe® Kava-Oil offers an additional option for developing skincare concepts that combine skin soothing, skin comfort and the appearance of fine-line care.
Important Evidence Note: The 5-minute fine-line improvement observation was obtained using an 8% PMSoothe® Kava-Oil formulation during an internal product evaluation. It was not part of a formal efficacy study.
Dual-target anti-irritation: TRPV1 expression + AP transmission
In short: PMSoothe® Kava-Oil blocks burning, pain and itching through two targets at once — inhibiting TRPV1 protein expression and interrupting action potential (AP) transmission in the skin sensory nervous system — achieving fast nerve relief.
Why the second target matters. Human skin distributes multiple receptor subtypes, TRPV1 through TRPV6, each perceiving different stimuli. Traditional TRPV1 inhibitors act on a single target, so irritation signals triggered by TRPV2–TRPV6 activation can still be transmitted. But no matter which TRPV receptor is activated, the stimulus signals must ultimately travel to the brain in the form of action potentials. Inhibiting AP transmission therefore maximizes the blockage of various stimulus signals and provides a broader anti-irritation effect.
Mechanism diagram：
Left: Six categories of stimuli (high temperature, capsaicin, acidity, inflammation, mechanical force, hypoxia, osmotic pressure, changes in Ca²⁺ concentration, etc.) activate TRPV1–TRPV6 channels, respectively.
Right: Conventional soothing ingredients target only TRPV1; in contrast, PMSoothe® Kava-Oil intervenes at the action potential (AP) stage, effectively blocking the transmission of burning and stinging signals to the brain.
Efficacy & safety data at a glance
# | Test | Model / Method | Concentration | Result |
1 | Anti-irritation: TRPV1 inhibition | Keratinocytes (capsaicin receptor) | 0.5% | TRPV1 inhibited by 42.06% |
2 | Anti-irritation: nerve soothing | Zebrafish total moving distance (acetic-acid stimulus) | 0.1% | Nerve-soothing efficacy up to 96%（p < 0.001） |
3 | Skin repair | Keratinocyte migration rate | 0.125% | Migration rate +55% vs NC group |
4 | Safety: human patch test | 30 subjects, 48 h closed patch, per Cosmetic Safety Technical Specifications (2015 Edition) | 10% | No adverse skin reaction in any subject |
5 | Safety: eye irritation | HET-CAM (Chicken Embryo Chorion-Allantois Membrane Test) | 1% | Non-irritating |
How to read these results
42.06% TRPV1 inhibition + 96% neural soothing (zebrafish acetic-acid stimulus model, Plamed in-house test, p < 0.001) — four receptor targets (TRPV1, TRPV3, TRPV4 and TRPA1), not TRPV1 alone: Plamed in-house keratinocyte assay measured inhibition of TRPV1 42.06%, TRPV3 38.5%, TRPV4 35.2% and TRPA1 31.7% at 0.5%. The receptor-level result provides target evidence, while the zebrafish result reflects the overall neurobehavioral effects. Together, they support the dual-target mechanism with experimental evidence rather than merely a conceptual claim.
Anti-irritation: Zebrafish total moving distance
Zebrafish accelerate their swimming to escape an acetic acid stimulus, and this test evaluates the degree of stimulation based on the total movement distance per unit time. Test results show that PMSoothe® Kava-Oil exhibits a nerve-soothing efficacy of up to 96% at a 0.1% concentration.
+55% keratinocyte migration: Cell migration is a classic in vitro indicator of skin barrier repair, supporting the “repair” claim for sensitive skin.
No adverse reactions in a 48-hour human patch test at 10%: The test was conducted at the recommended maximum concentration (≤10%), supporting a favorable safety profile. A negative result in the HET-CAM alternative eye irritation test further supports formulation development for the eye area and color cosmetics.
Additional efficacy tests (e.g., anti-wrinkle effects) are available on the page for the same ingredient in its water-soluble version, PMSoothe® Kava97.
PMSoothe® Kava-Oil Wholesale: Price, MOQ and Supply
Supply, packaging and samples
Item | Detail |
Product | PMSoothe® Kava-Oil (oil-soluble kava root extract) |
Product ID | PMS0104 |
INCI name | PIPER METHYSTICUM ROOT EXTRACT, CAPRYLIC/CAPRIC TRIGLYCERIDE |
Specification | Kavain ≥8000 ppm; Yangonin ≥1500 ppm (six kavalactones controlled internally) |
Form / carrier | Clear yellow oil-phase liquid in Caprylic/Capric Triglyceride (GTCC) |
Extraction process | Supercritical CO₂ extraction |
Reference dosage | 0.1%–0.5% typical; up to 10% in oil phase |
MOQ | 1 kg |
Samples | Complimentary samples for laboratory evaluation and pilot trials |
Lead time | 3–5 working days after payment for standard items |
Storage | Sealed, cool and dark place; GTCC carrier (freezing point ≈ −15 °C), no solidification at 4 °C for 6+ months |
What PMSoothe® Kava-Oil Offers
· Dual-target anti-irritation — inhibits TRPV1 protein expression and blocks AP transmission, covering irritation signals from all TRPV1–TRPV6 receptors, not just TRPV1.
· Evidence-backed dosage ladder — 42.06% TRPV1 inhibition (0.5%), 96% nerve soothing (0.1%), +55% keratinocyte migration (0.125%), 10% human patch test clean.
· Stability by design — no precipitation, no discoloration: 85 °C/10 min, 45 °C/3 months, 4 °C/6 months all verified; freezing point of carrier ≈ −15 °C.
· Formulator-friendly compatibility map — up to 10% in synthetic esters and natural plant oils; documented limits for alkane systems (≤3%) and clear silicone-oil guidance.
· Multi-indicator quality control — two published specification indicators (Kavain, Yangonin) backed by internal six-kavalactone control for batch consistency.
Available Document of PMSoothe® Kava-Oil
Certificate of Analysis (COA)
Material Safety Data Sheet (MSDS)
Oil compatibility test report
Human patch test report & HET-CAM test report
Regulatory support dossier
To request a quote or a sample, contact Plamed Green Science Group here.
Kava Extract Manufacturer and Wholesale Supplier
Plamed is a kava extract manufacturer and kavalactone supplier producing oil-soluble PMSoothe® Kava-Oil (Kavain ≥8000 ppm, Yangonin ≥1500 ppm) by supercritical CO₂ extraction for sensitive-skin skincare, W/O emulsions and makeup bases. For buyers looking for kava extract for sale or comparing kavalactone extract suppliers, Plamed offers lab-evaluation samples, batch COAs, and a documented oil-compatibility report — MOQ from 1 kg for trials, scalable volumes for production.
Kavalactone Extract Pricing and Wholesale Supply
Kavalactone extract price depends on kavalactone specification (Kavain/Yangonin content), order volume, packaging and destination-market documentation. To buy kavalactones at low price without compromising stability, source directly from the manufacturer: request a quotation matched to your volume — trial batches and long-term wholesale supply are both supported.
Why Source Kava-Oil from Plamed?
Plamed controls the full chain in-house: kava botanical sourcing, supercritical CO₂ extraction, six-kavalactone internal quality control and release testing, plus the water-soluble sister product PMSoothe® Kava97 for one-stop sensitive-skin formulation. Batch-specific COAs and efficacy dossiers (TRPV1, zebrafish, keratinocyte migration, human patch test) support regulatory filing and claims work.
Q1: What are the main active compounds in kava?
A: The main active compounds in kava are kavalactones — a group of lipophilic compounds also called kava pyrones. Six major kavalactones are recognized as the primary active constituents: kavain, dihydrokavain, methysticin, dihydromethysticin, yangonin and desmethoxyyangonin. Their combined ratio, rather than any single compound, determines a kava extract's soothing performance. PMSoothe® Kava-Oil controls six kavalactones internally and publishes two indicators: Kavain ≥8000 ppm and Yangonin ≥1500 ppm.
Q2: What is the best extraction method for kavalactones?
A: For cosmetic-grade kava extract, supercritical CO₂ extraction is the method of choice: it is solvent-free, runs at moderate temperature, and selectively extracts lipophilic kavalactones without degradation risk. PMSoothe® Kava-Oil is produced exactly this way — supercritical CO₂ extraction followed by dispersion in Caprylic/Capric Triglyceride (GTCC) — which is also the reason the extract stays stable, clear and free of sediment in oil-phase formulations.
Q3: Where can I buy kavalactones or kava extract for cosmetics?
A: You can buy cosmetic-grade, oil-soluble kava extract directly from the manufacturer — Plamed Green Science Group (see the Procurement tab below). Note that kavalactones are sold as a standardized botanical extract (Kavain ≥8000 ppm, Yangonin ≥1500 ppm), not as isolated single compounds; this keeps the full kavalactone ratio intact and batch performance consistent.
Q4: Can PMSoothe® Kava-Oil be dissolved in alcohols or polyols?
A: Yes. PMSoothe® Kava-Oil dissolves successfully in polyols such as glycerin, propanediol and butanediol, and can then be added into the formulation directly.
Q5: How is the 10% concentration in PMSoothe® Kava-Oil defined?
A: The 10% does not refer to the raw botanical powder input. It represents the actual weight percentage of the pure kava extract — obtained through supercritical fluid extraction and GTCC extraction — within the final product.
Q6: Can PMSoothe® Kava-Oil undergo high-temperature heating during manufacturing?
A: Yes, it exhibits excellent thermal stability and withstands short-term hot processing: active levels remain stable at 85 °C for up to 10 minutes (short-term processing), and long-term testing shows no significant change in component content or appearance after 3 months at 45 °C.
Q7: Will PMSoothe® Kava-Oil freeze or solidify at low temperatures (5 °C)?
A: No. The carrier solvent is GTCC, whose freezing point is approximately −15 °C. Low-temperature stability tests confirm no solidification or separation after more than 6 months at 4 °C.
Q8: How does PMSoothe® Kava-Oil perform in foundations? What is the recommended dosage?
A: It delivers strong anti-irritation and barrier-repair benefits in makeup bases. Because foundations are predominantly water-in-oil (W/O) systems, the oil-soluble Kava-Oil is highly recommended. Dosage depends on the irritation level of the formulation's ingredients rather than the product type: if the formula contains no strong irritants, 0.1%–0.5% is sufficient for robust anti-irritation and repair effects.
Q9: What is the compatibility of PMSoothe® Kava-Oil with different cosmetic oils?
A: Comprehensive oil compatibility testing has been completed, with three conclusions: (1) Synthetic esters & natural plant oils — excellent compatibility at the recommended usage (up to 10%); (2) Silicone oils — poor compatibility, not recommended for pure silicone-oil systems (risk of hazing or precipitation); (3) Synthetic/plant alkanes (e.g. Hydrogenated Polyisobutene, Squalane) — reduce the dosage to ≤3% and avoid low-temperature storage to prevent hazing.
Q10: Our formulation showed precipitation after 1 month at room temperature with 0.2% Kava-Oil (the formula also contains Tea Tree, Angelica and Licorice oils). Could Kava-Oil be the cause?
A: Based on our compatibility data, it is highly unlikely: true kava-extract precipitates appear as characteristic smooth, glossy particles — not white gels or flakes — and at 0.2% Kava-Oil remains highly stable (it is stable at up to 10% in standard vegetable and synthetic oils). The issue more likely stems from incompatibility between the other botanical oils or emulsifiers; we recommend running a blank control test (omitting Kava-Oil) to isolate the cause.
Q11: The raw material has a distinct odor — is it from the kava or the solvent? How can we reduce it?
A: The odor is entirely a natural characteristic of the kava active components, not the solvent. Three ways to manage it: (1) Matrix encapsulation — emulsifiers and thickeners in a complete formula physically mask part of the kava odor, so evaluate the final scent in a full formula sample; (2) Dosage control — keeping Kava-Oil ≤0.5% significantly lightens the natural odor; (3) Process optimization — our R&D team is exploring advanced processing (concentration, vacuum stripping) to reduce the odor without compromising the actives.
Q12: Is kava extract safe for topical skincare use?
A: The safety data for PMSoothe® Kava-Oil supports topical cosmetic use: a 10% human patch test on 30 subjects (48 hours, per the Cosmetic Safety Technical Specifications 2015 Edition) showed no adverse skin reactions, and the HET-CAM test confirmed 1% Kava-Oil is non-irritating to eyes. As with all cosmetic actives, use within the recommended dosage and avoid ingestion — this product is developed for cosmetic formulations only.