Kids Drop Manufacturer for Custom Supplement Brands

Dropper bottles demand accurate fill weights and leak-proof closure. Our line handles 15–30 ml glass and PET bottles with calibrated peristaltic pumps, holding fill accuracy within ±1%. We run 30,000 to 120,000 bottles per day depending on bottle size and batch count. Changeover between SKUs takes 4–6 hours, which keeps small runs practical. Inline checkweighers reject underfilled or overfilled units before capping.

For oil-based formulas, we use nitrogen flushing to limit oxidation. For water-based drops, we apply pasteurisation or preservative systems suited to children's products. Both routes run on the same filling suite, so you are not locked into one base. Batch records include fill weight logs, torque checks and micro results. This matters when your buyer asks for a certificate of analysis per lot.

Children's drops usually need a neutral or mildly sweet taste without excess sugar. We work with natural flavours, monk fruit, stevia and glycerol to mask vitamins, minerals, omega-3 and herbal extracts. Common actives include vitamin D3, vitamin K2, zinc, iron, multivitamins, DHA and elderberry. Dosage per drop is calculated from the fill volume and dropper calibration, so you can print a clear daily serving on the label.

Preservative choice depends on pH, water activity and target shelf life. We test 18–24 month stability at 25°C/60% RH and 30°C/65% RH. If you need a sugar-free or vegan claim, we adjust the carrier and confirm the final formula against your market rules. For organic certification, at least 95% of ingredients must be organic by weight, excluding water and salt. We source organic actives from approved suppliers and keep traceability records.

Our facility is GMP-certified, ISO 22000 and HACCP compliant. We hold halal and vegan certifications where the formula allows. Every kids drop batch is tested for identity, potency, microbial limits, heavy metals and, where relevant, residual solvents. We release products only after a full certificate of analysis is signed. We are an FDA-registered facility for dietary supplements, which supports US import clearance.

For export, we prepare commercial invoices, packing lists, certificates of origin and health certificates. We ship FOB Shenzhen or Yantian, with air freight for samples and urgent orders. Standard retail cartons hold 12, 24 or 48 bottles. If you sell on Amazon or in EU pharmacies, we can apply child-resistant droppers and tamper-evident seals. Lead time from PO to port is 20–35 working days for mass production.

Every kids drop batch is tested at three points: incoming raw materials, in-process liquid, and finished bottles. Identity testing by HPLC or GC confirms each active, while potency assays verify label claim within 95–105%. Microbial testing covers total plate count, yeast and mould, E. coli, Salmonella and Staphylococcus aureus, with limits set to the finished-product specification. Heavy metals (lead, arsenic, cadmium, mercury) are screened by ICP-MS against EU and US pharmacopoeial limits. Results are recorded before any batch is released to the filling line.

In-process checks on the kids drop filling line include fill weight every 30 minutes, dropper tip torque, and visual inspection for particulates. Finished bottles are quarantined until the certificate of analysis (COA) is signed off by the QC manager. The COA lists batch number, manufacture and expiry dates, active assay results, microbial counts, heavy metal values, pH, density and appearance. A retention sample of at least 200 ml per batch is stored at 25°C and 60% relative humidity for the full shelf life plus six months.

Stability follows a bracketed protocol: real-time data at 25°C/60% RH and accelerated data at 40°C/75% RH for six months. Parameters include pH drift, colour, flavour, preservative efficacy and microbial challenge. For kids drops with oil-based actives, peroxide value and rancidity are monitored. If a formula changes, a new stability study is triggered. Batch records, raw material COAs and stability reports are retained for five years and are available to brand owners on request for regulatory filings.

Kids drop manufacturing supports 15 ml, 20 ml and 30 ml amber or clear glass dropper bottles, with child-resistant caps and tamper-evident seals. For larger volumes, HDPE bottles with dropper inserts are available. Secondary packaging includes printed cartons, shrink-wrap and blister packs where required. We apply lot number and expiry date by inkjet or laser coding on the bottle, carton and shipper. Cartons are specified to withstand 1.2 m drop tests and are printed with FSC-certified board on request.

Labels are checked against FDA dietary-supplement requirements: statement of identity, net quantity, supplement facts panel, ingredient list, allergen declaration, and manufacturer or distributor address. For EU retail, we verify the nutrition declaration, advisory statements for children and the food business operator address. Amazon FNSKU labels, poly-bagging and expiration-date formatting are applied in-house. Artwork proofs are approved by the brand owner before printing, and a signed proof is retained with the batch record.

Carton and pallet specifications are agreed per order. Standard export cartons hold 24 or 48 bottles, with a maximum gross weight of 15 kg. Pallets are 1,200 x 800 mm or 1,200 x 1,000 mm, stretch-wrapped and corner-protected, with a maximum height of 1.8 m. We provide a packing list with carton dimensions, net and gross weights, and pallet configuration. For retail-ready programmes, we can apply shelf-ready trays and GS1 barcodes. All packaging materials are checked for food-contact compliance before use.

Sampling starts with a formula brief and a 7–10 working day turnaround for a 100–200 ml prototype. If a new flavour or active is required, add 5 working days for sourcing and stability pre-check. Sample cost is quoted per project and credited against the first mass-production order. Once the sample is approved in writing, artwork and label proofs are finalised within 3–5 working days. Mass production then runs 20–35 working days depending on bottle size, carton printing and whether the formula is water-based or oil-based.

Delivery is quoted EXW, FOB Shenzhen or Hong Kong, or DDP to the destination warehouse. Air freight is used for samples and urgent orders under 500 kg, typically 5–8 days door to door. Sea freight is standard for full pallets, with transit times of 18–25 days to the US west coast, 25–32 days to Europe and 12–18 days to Middle East ports. We provide a COA, MSDS, free-sale certificate, and phytosanitary certificate where botanical ingredients require it. Shipping documents are issued within 3 working days of dispatch.

MOQ is 1,000 units per SKU, with 1,000 units for pilot runs. For orders above 50,000 units, we schedule dedicated line time and can hold finished goods in a bonded warehouse for phased releases. Payment terms are 30% deposit with the balance against the bill of lading, or letter of credit for orders above USD 50,000. Lead times are confirmed in the proforma invoice, and any delay caused by artwork approval or raw material shortage is communicated within 24 hours.