AcuCrystal™ — sustained-release EV comfort patches for senior and midlife retail
AcuCrystal™ is TONGNIAN's transdermal patch line: joint- and shoulder-comfort patches carrying characterized EVs in a sustained-release matrix, built for brands serving senior and midlife comfort routines. Patches are produced with the same characterized EV base as the rest of the platform and checked batch by batch for payload and release consistency; every batch ships with a COA.
Who this line serves
- joint-comfort seniors (65+) — knee-area comfort patches within daily mobility routines, often bought as gifts by adult children.
- midlife programs (45–60) — shoulder- and neck-area patches for desk-and-commute bodies with joint concerns.
- Channel retail & gifting — pharmacy-adjacent and wellness shelves, where patch formats are an established category.
Line programs
| Program | Population | Dosage form | Status |
|---|---|---|---|
| Joint comfort patch | Seniors · midlife desk routines | Sustained-release patch, 5-pack (sample) | Pilot-ready |
| Shoulder & neck comfort patch | Midlife desk routines | Sustained-release patch, 5-pack (sample) | Pilot-ready |
| Night wear program | Seniors · menopause stage | Extended-wear patch variant (sample) | Format development |
What this line does
- Sustained-release wear — EV payload released gradually across the wear window; no mess, no residue.
- Targeted placement — patches sized and shaped for knee, shoulder, and neck areas.
- Category whitespace — comparable EV patch lines are still rare, so early brands get a shelf story competitors cannot copy.
- Documented batches — payload and release consistency checked batch by batch; COA with every shipment.
Specs & characterization
| Item | Value |
|---|---|
| Patch matrix | Sustained-release hydrogel matrix with characterized EVs (sample) |
| EV payload | Per-patch payload measured on retained samples (sample values at quotation) |
| Vesicle size (NTA) | 80–200 nm range by program (sample) |
| Wear window | Up to 8 h per patch (sample) |
| QC panel | Payload & release consistency, microbial limits, NTA; batch COA |
| Storage | Cool, dry, light-protected (sample) |
| Compliance status | EV material line: FDA DMF Type II 044197 · INCI 41316; finished good on the cosmetic/comfort track |
| Typical program | Pilot from 500 units · production from 2,000 units · standard lead 15 workdays |
Quality & compliance
- Comfort-track positioning — warming/comfort routine wording only; no therapeutic joint claims.
- Material chain — DMF Type II 044197 and INCI 41316 on the EV material line; batch COAs with every shipment.
- Closed line — EV base produced on the fully enclosed 0.5–5 L micro-batch platform.
- Gifting-ready kits — bundle configurations built for holiday gifting seasons.
Work with this line: start via Request a quote, or review the OBM program for patch + oral comfort bundles.
Request a quote
Customize AcuCrystal™ dosage forms and skin feel for your brand.
Share your brand stage and target category, and we’ll return sample specs, an MOQ framework, and characterization samples (typical: sample kits in 3–5 days); to review the full-line design first, head to Knowledge · Solutions.