BUTTER-C
Signature ingredients
Lavender body wash OEM/ODM manufacturing
Lavender Body Wash · Signature Ingredients · OEM/ODM
Lavender is a familiar scent in bath salts, massage oils and body washes. The named ingredient is lavender essential oil (INCI: Lavandula Angustifolia Oil), steam-distilled from the flowering tops of true lavender, Lavandula angustifolia, with linalool and linalyl acetate as its main components. It is often confused with lavandin and spike lavender — similar scents, different compositions — so the scientific name and gas chromatography on the certificate of analysis decide the story. In cosmetics, lavender oil is a fragrance ingredient. Promises of “stress relief, better sleep” come from data on inhaling the scent or taking oral capsules — a medical setting, not evidence for a body wash; the European Medicines Agency also notes there is no structured clinical research on skin use. The technical point that matters is oxidation: on air exposure, linalool and linalyl acetate form hydroperoxides with a much stronger potential to cause contact allergy. Butter-C’s lavender body wash therefore promises cleansing, fine lather and a pleasant lavender scent in the shower, with oil of the right species, a peroxide value and an antioxidant — not relaxation or sleep. Butter-C offers turnkey OEM/ODM manufacturing, from formula development and testing to labeled finished goods and the notification dossier.
Formula base
Cleansing system, lavender oil and antioxidant
A lavender body wash uses the same cleansing system as a standard body wash; what is specific is choosing the right species of oil, keeping it from oxidizing and solubilizing it into a water base.
Lavender oil (Lavandula Angustifolia Oil)
The material in Butter-C’s current ingredient list is declared under this INCI. According to the EMA (2012), linalool makes up 20–50% and linalyl acetate 25–46% (of the fraction); each lot varies with cultivar and growing region. We found no CIR report on lavender oil, so there is no verified use concentration to cite: the level is set by the lot’s IFRA certificate for the rinse-off category, the safety assessment in the Product Information File (PIF) and tolerance testing on the finished product.
Cleansing system
Sodium laureth sulfate with cocamidopropyl betaine for a high-lather, cost-effective gel; amino acid or glucoside systems for a sulfate-free line (mildness tested on the finished product; amino acid systems are sensitive to low pH) — as on the general body wash page.
Solubilizing the oil in a water base
Essential oil does not dissolve in water. In a body wash the surfactant system usually solubilizes a small amount; a clear gel may need a solubilizer such as PEG-40 hydrogenated castor oil, premixed with the oil before adding. The ratio is chosen by clarity testing at cold, room and warm temperatures.
Antioxidant and moisture
Tocopherol protects the oil and oil phase; glycerin, panthenol and PEG-7 glyceryl cocoate give a soft after-rinse feel. The IFRA standard for linalool (which also covers natural products rich in linalool) requires keeping peroxides low — for example, adding 0.1% BHT or α-tocopherol when the raw material is produced.
Key technical points
Right species, antioxidant protection and summing fragrance allergens
These four points are where a lavender body wash differs from a standard body wash; each is settled by a certificate of analysis or a test on the sample.
True lavender, not lavandin or spike lavender
The EMA notes that L. angustifolia is regularly confused with lavandin (L. x intermedia) and spike lavender (L. latifolia). Lavandin grown in Ukraine contained 10.11–12.55% camphor (Pokajewicz et al., 2022); Spanish spike lavender samples contained 10–18% camphor and 26–32% eucalyptol (Carrasco et al., 2016). The certificate needs the scientific name and per-lot gas chromatography (linalool, linalyl acetate, camphor, 1,8-cineole). If lavandin is used, it is labeled under lavandin’s own INCI. Lavender flower extract (Lavandula Angustifolia Flower Extract) is also a different ingredient.
Oxidation creates allergens
In mice (LLNA test), pure linalyl acetate was a weak sensitizer (EC3 25%), while a sample oxidized for 10 weeks had an EC3 of 3.6% — sensitizing at a much lower concentration; among the oxidation products, the hydroperoxides were more potent sensitizers than the epoxide and alcohol also formed (Sköld et al., 2008). Lavender oil exposed to air oxidizes at the same rate as the pure compounds (Hagvall et al., 2008). Hence: a peroxide value on the certificate (IFRA: below 20 mmol/L), full and sealed raw material containers, using opened oil promptly, and adding the oil in the cool-down phase (plant practice, to be validated).
Short contact time; scent is the function
A body wash stays on the skin only minutes before rinsing. Skin-application data for lavender oil exist only in rodents (hair follicles, wounds) — wounds are a medical setting; anxiety data come from inhalation or oral capsules (Donelli et al., 2019, most trials at high risk of bias). The oil is used for fragrance; the level is chosen for the desired scent strength within the IFRA certificate.
Summing linalool and labeling allergens
ASEAN: lavender oil, linalool and linalyl acetate are not listed in Annexes II, III, VI (version 2026-1) or VII (version 2025-2); Annex III leaves entries 67–92 blank, so there is no name-specific labeling threshold. EU exports: Regulation (EU) 2023/1545, entry 360, requires “Lavandula Oil/ Extract”, entry 337 Linalyl Acetate, and Linalool (entry 84 of Regulation 1223/2009) to be labeled above 0.01% in rinse-off products; non-compliant products could be placed on the EU market only until 31 July 2026 (passed) and made available until 31 July 2028. Linalool from other fragrances and essential oils goes into the same calculation.
Three formulation directions
Three lavender body wash lines
Clear lavender shower gel
Sulfate–betaine system, salt-thickened, with a solubilizer for the oil; a clear gel needs clarity testing at several temperatures and odor tracking through aging.
Sulfate-free lavender body wash
Amino acid–glucoside–betaine system, light lavender scent, added glycerin and panthenol; a mild positioning — mildness tested on the finished product, and the label still advises a patch test.
Pearlescent moisturizing lavender body wash
Opaque base with glycol distearate, Polyquaternium-7 and emollients; lavender oil blended with fragrance for a rounder “lavender scent” — allergens from both sources are summed.
Packaging is designed with the formula
Pump bottles of 500 ml–1 liter, refill pouches; plastics, gaskets and pumps must withstand the essential oil (compatibility testing). The purple color of lavender body washes on the shelf usually comes from an added colorant (formulation experience).
Parameters we monitor
What our R&D team measures on every sample
These are the parameters Butter-C tracks during formula development and scale-up. Specific limits are agreed with you on the approved sample and then written into the product’s in-house specification.
- Incoming essential oil file
- Scientific name, gas chromatography (linalool, linalyl acetate, camphor, 1,8-cineole), peroxide value, fragrance allergen declaration, IFRA certificate — per lot.
- Appearance and odor
- Compared with the reference sample at each stability time point; a “harsh” or shifted odor signals oxidation and triggers a recheck.
- pH
- Measured at 25 °C; kept within the agreed range for mildness and preservative efficacy (body washes are typically pH 5–6.5 — as on the general body wash page).
- Viscosity and clarity
- Rotational viscometer at 25 °C; the oil shifts the viscosity curve, so thickness is adjusted last; the clear gel is checked for clarity at cold, room and warm temperatures.
- Foaming
- Foam height and stability, compared with the approved sample.
- Stability
- Freeze–thaw cycling, storage at 40 °C and under light; watching for separation, color change, odor change and viscosity drift.
- Microbiology and preservative efficacy
- Tested at a GLP / ISO 17025-accredited laboratory; preservative efficacy (challenge) test to ISO 11930. The essential oil is not counted as a preservative.
- Fragrance allergen calculation
- Linalool, linalyl acetate, limonene and others summed from the oil and fragrance per supplier statements; EU exports checked against the 0.01% rinse-off threshold.
- Packaging compatibility
- Filled into the actual bottles and pouches; checking pump force, leakage, plastics and gaskets softened by the oil, and staining.
Claims
Claims for a body wash with lavender oil
A body wash is a rinse-off product: its functions are cleansing and fragrance. Annex 03-MP of Vietnam’s Circular 06/2011/TT-BYT lists only “enhances emotions” and “sexual attraction” as unacceptable claims for perfumes and fragrances; the EMA classifies lavender oil taken orally or added to a bath as a traditional herbal medicine for mild stress and sleep — such claims are drug claims. Insect repellency is outside the cosmetic purpose. Butter-C reviews label and marketing wording when preparing the notification dossier.
Gentle cleansing, fine lather
Instead of: claims to act on bacteria, body odor control from the essential oil.
Pleasant lavender scent in the shower
Describes the scent. Instead of: relieves stress, reduces anxiety, helps you sleep, enhances emotions.
Contains lavender oil (Lavandula angustifolia) for fragrance
Instead of: “natural, so it won’t cause allergies”, “all-natural”, repels mosquitoes or insects.
Skin feels soft, not tight, after showering (with sensory testing)
Instead of: wound recovery, soothes red, irritated skin, restores the skin barrier.
Not positioned for young children
There are case reports of breast enlargement in prepubertal children coinciding with use of lavender-containing products (Henley 2007: 3 boys, products containing lavender and tea tree oils; Ramsey 2019: 3 girls, 1 boy), resolving after use stopped. These are case reports with no measured oil amounts; guideline tests of linalool and linalyl acetate found no significant estrogen or androgen receptor activity (Hareng 2024 — authors employed by a company producing both substances). Causation has been neither established nor ruled out. Instead of: safe for newborns, lavender body wash for babies.
Label warnings
Avoid contact with eyes; stop use if redness, itching or stinging occurs; people already allergic to fragrance or lavender should choose fragrance-free products. In patch-test studies of patients with suspected contact dermatitis (not the general population), lavender was positive in 2.2% (Bingham 2019) and oxidized lavender oil in 2.8% (Hagvall & Christensson 2016). Pregnancy and breastfeeding: insufficient data, consult a doctor.
Manufacturing specifications
Available capabilities
- Texture
- Clear gel, opaque lotion or pearlescent cream; lavender scent light or strong on request.
- Lavender material
- Lavender oil (Lavandula Angustifolia Oil) is in Butter-C’s current ingredient list; every lot comes with a certificate stating scientific name, gas chromatography and peroxide value.
- Pack formats
- Pump bottle, flip-top bottle, refill pouch. Volume agreed when packaging is selected.
- Minimum order quantity
- Agreed per order and per fragrance.
- Testing
- Performed at a GLP / ISO 17025-accredited laboratory, with a certificate of analysis delivered with every lot.
- Documentation
- Product Information File (PIF) and cosmetic product notification dossier prepared by Butter-C, with a fragrance allergen calculation for EU exports.
- Packaging
- Label design, printing and packing run in parallel with formulation.
Suggested product concept
Pearlescent lavender body wash with oil of the right species
A product concept to help you visualize the range — not a ready-made product for sale. The actual formula is developed around your brand positioning and price point.
Mild sulfate–betaine system
Sodium laureth sulfate, cocamidopropyl betaine, PEG-7 glyceryl cocoate; rich lather, quick rinse, cost-effective for large volumes.
Named lavender oil
Added in the cool-down phase with tocopherol; level per the lot’s IFRA certificate; certificate stating Lavandula angustifolia, gas chromatography and peroxide value.
Glycerin, panthenol, pearlescent base
Soft after-rinse feel; glycol distearate for opacity.
500 ml pump bottle with a refill pouch
Label directions to avoid the eyes; EU exports labeled “Lavandula Oil/ Extract”, Linalool and Linalyl Acetate when above the threshold.
Customization options
What you can specify
The same product type serves different customer groups for each brand. Tell us your requirements in the areas below and our pharmacists will build the matching formula.
Source of the lavender scent
L. angustifolia oil only, blended with fragrance, or lavandin (its own INCI, a more noticeable camphor note, lower cost) — labeled according to the actual source.
Cleansing system
With or without sulfates; rich lather or extra mild.
Color
Natural base color, pearlescent, or purple from a colorant listed in ASEAN Annex IV (CI number on the label) — not “natural purple from lavender”.
Market
Domestic or EU export — determines the fragrance allergen calculation and label.
User group
Adults who enjoy lavender; Butter-C does not propose positioning for newborns or young children; maternity lines should preferably be fragrance-free.
Ingredient positioning
Vegan, paraben-free, colorant-free — please state this at the start, as it affects the base formula.
Further reading
Related knowledge
Lavender oil (Lavandula angustifolia) in cosmetics
Right species, oxidized linalool and allergy, where relaxation data come from, case reports in children and EU labeling (in Vietnamese).
Body wash manufacturing
General page on cleansing systems, viscosity and fragrance in body washes; this page focuses on lavender oil.
Shower oil manufacturing
A water-free bathing format, with fragrance dissolved directly in the oil.
Green tea body wash manufacturing
A body wash named after another plant ingredient, with the same approach to short contact time.
Contact dermatitis from cosmetics
Why people already allergic to fragrance should choose fragrance-free products (in Vietnamese).
How we work
From idea to finished batch
Eight steps and three milestones signed off by both sides: approved sample, notification number, finished batch. Step-by-step details (in Vietnamese) →
Get started
Tell us about the product you plan to launch
Send us your product direction and expected volume. Our team will get back to you during business hours (Vietnam time, GMT+7).
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