Low viscosity dimethicone for hair serum and leave-in conditioner is usually selected when the formula needs quick spread, slip, shine and a smoother hair surface without excessive weight. It should be screened as part of a complete hair-care system, not as a standalone promise of frizz control or repair.
JY-DM6 Dimethyl Silicone Oil and JY-DM10 Dimethyl Silicone Oil are Juyou’s current low-viscosity methyl silicone oil routes. The controlled records list JY-DM6 at 5.5-6.5 mm2/s and JY-DM10 at 9.0-11.0 mm2/s at 25 deg C. Both should be checked with current TDS/SDS, COA and finished-formula panel evidence before purchasing for a launch.
Map the finished hair product first
Define whether the project is a clear anhydrous serum, oil blend, sprayable leave-in, cream leave-in, conditioner booster or anti-frizz finishing fluid. Each format has different limits for viscosity, clarity, emulsification, pumpability and deposit on dry or damp hair.
Record hair type, damage level, climate, claim language and application dose. A formula for fine straight hair may fail if it uses the same silicone level as a smoothing serum for coarse or chemically treated hair. Procurement should ask for samples only after the target consumer and use method are clear.
- Serum, oil, spray or cream format
- Fine, damaged, curly or coarse hair target
- Wet-hair and dry-hair application method
- Desired shine, slip and weight-down limit
Choose the viscosity grade by feel and process
JY-DM6 has a lower listed viscosity than JY-DM10, so it is the lighter first screen when fast spread and minimal weight are the main goals. JY-DM10 may give more cushion while still staying in the low-viscosity range. Buyers should test both at matched active levels rather than decide from a name alone.
Low viscosity can also affect filling and packaging. A formula that feels elegant in a beaker may leak from a pump, mist poorly, separate in a clear bottle or feel too thin for a premium serum. Include package and application tests in the raw-material evaluation plan.
- JY-DM6 for lighter spread screening
- JY-DM10 for slightly higher cushion screening
- Matched use level and formula base
- Pump, dropper, spray and leakage checks
Test slip, combing and shine with controls
Hair-care sensory work should use treated tresses or salon-panel protocols, not only a rub-out on skin. Measure wet combing, dry combing, shine, flyaway, frizz appearance, residue, buildup after repeat application and wash-out behavior. Include untreated control and the current approved material.
If the formula also uses cationic conditioners, oils, esters, gums or volatile carriers, isolate the role of dimethicone by running a simple design of experiments. This helps procurement avoid paying for a grade that is not the real driver of the finished result.
- Wet and dry combing force or panel score
- Shine and frizz comparison after drying
- Repeat-use buildup and wash-out check
- Benchmark against current approved silicone
Control impurities and cosmetic documentation
The JY-DM6 controlled record lists D4, D5 and D6 below 0.1%, heavy metal as Pb <=0.0005% and individual Pb, Ni, Cd, Cr, Co, As, Sb and Hg below 2 ppm. These fields should be confirmed on the current COA and matched to the buyer's regulatory standards.
The JY-DM10 record provides viscosity, density, refractive index, appearance and flash-point fields. If the brand requires cyclic-siloxane or heavy-metal values for JY-DM10, request those documents directly before approval. Do not infer one grade’s impurity profile from another grade.
- Current TDS/SDS and sample COA
- Cyclic-siloxane and heavy-metal declarations
- Destination-market cosmetic restrictions
- Separate records for JY-DM6 and JY-DM10
Check compatibility in leave-in systems
Leave-in formulas remain on the hair and often contact skin, scalp, fragrance, dyes, styling polymers and packaging for long periods. Run clarity, haze, viscosity drift, odor, color and separation checks at room, elevated and low temperature. Watch for incompatibility with natural oils, esters or conditioning polymers.
For emulsified leave-in conditioners, the silicone oil must fit the emulsifier and homogenization process. Droplet size, creaming, viscosity and rub-out can change after scale-up. Buyers should ask whether the supplier can support a grade comparison when the lab formula moves to pilot production.
- Clear-serum haze and separation
- Emulsion droplet and creaming stability
- Fragrance, dye and package interaction
- Heat, cold and cycling stability
Balance performance with consumer and brand constraints
A high-shine serum can fail commercially if it makes fine hair collapse or if repeat use creates visible buildup. Set an upper limit for applied mass per hair length and define acceptable residue after one, three and five uses. For leave-in conditioners, evaluate feel after full drying, not only immediately after application.
Some brands need silicone-free alternatives for specific lines, while others choose dimethicone for reliable sensory performance. Keep the purchasing file factual: grade, viscosity, test method, use level, result and compliance documents. Avoid broad claims such as repair or guaranteed anti-frizz without finished-product proof.
- Fine-hair weight-down limit
- Repeat-use residue and wash-out
- Claim support from finished-product testing
- Silicone-positioning decision by brand line
Build purchasing terms around repeatability
Request viscosity range, density, refractive index, appearance, odor, flash point, impurity fields, shelf life, package, MOQ and lead time. Ask for lot-to-lot control and change notice because small sensory shifts can matter in a premium hair serum.
The RFQ should state annual forecast, first trial batch, target pack size, export destination and document language. If both JY-DM6 and JY-DM10 are screened, ask for matched samples and COA so the technical team can compare them under the same formula conditions.
- Matched JY-DM6 and JY-DM10 samples
- COA fields and lot retention
- MOQ, lead time and package format
- Forecast and destination-market documents
Set pilot approval gates before scale-up
Approve the raw material only after a pilot batch confirms mixing, clarity or emulsion stability, filling, package compatibility and hair-panel performance. Keep retained samples and record the exact batch, grade, use level and processing conditions.
If the pilot result differs from the lab, review order of addition, mixing energy, fragrance, polymer concentration, temperature and package contact before blaming the silicone grade. The strongest procurement record connects raw-material fields with finished-product evidence.
- Pilot batch under plant-like conditions
- Finished-package stability and leakage
- Hair-panel result after drying
- Retained samples and batch traceability
Related Products
- JY-DM6 Dimethyl Silicone Oil: Lower-viscosity screen for light hair serum and leave-in conditioner feel.
- JY-DM10 Dimethyl Silicone Oil: Slightly higher low-viscosity screen for cushion and shine balance.
- Personal Care Silicone Materials: Compare related methyl silicone oils and personal-care silicone materials.
- Inquiry: Send formula type, grade screen, sensory target and document needs.
Frequently Asked Questions
Should I screen JY-DM6 or JY-DM10 first?
Screen JY-DM6 first for the lightest feel, then compare JY-DM10 when the formula needs more cushion, shine or viscosity while staying low-viscosity.
Can low viscosity dimethicone guarantee anti-frizz results?
No. It can support slip, shine and smooth feel, but anti-frizz performance depends on the whole formula, hair type, humidity and finished-product testing.
What documents should a hair-care buyer request?
Request current TDS, SDS, sample COA, impurity declarations, viscosity method, shelf life, pack options, MOQ, lead time and change-notification terms.
Why test repeat use?
Leave-in products can build up. Repeat-use testing shows weight-down, residue, wash-out and sensory drift that a single application may miss.
Can JY-DM6 impurity data be used for JY-DM10?
No. Each grade needs its own current record. Do not transfer one grade's cyclic-siloxane or heavy-metal data to another without supplier proof.
Request a low-viscosity dimethicone comparison
Send hair type, formula format, use level, package, sensory benchmark, compliance region and forecast for matched JY-DM6/JY-DM10 samples.