If a supplied lot fails agreed specifications, we’ll replace it at no cost or refund its purchase price in full.
Quality test failed? Free replacement or full refund.
Off-spec? Free replacement or full refund.
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0.9% benzyl-alcohol bacteriostatic laboratory diluent
Overview
BAC Water is sterile water containing 0.9% benzyl alcohol as a preservative, supplied as a supporting laboratory diluent rather than a cosmetic active. The preservative limits microbial growth after repeated vial entry, while compatibility with the peptide, active, and downstream formulation workflow must be confirmed before use. Pepoderma supplies BAC Water in 3 ml, 10 ml, and 30 ml sterile vial formats. The release documentation identifies the fill volume and benzyl-alcohol content and covers sterility and bacterial endotoxin. Preservative-free sterile water should be selected where benzyl alcohol is incompatible with the material or evaluation method.
Who buys this, and why
Anti-aging peptide actives — Copper Tripeptide-1 (GHK-Cu), Acetyl Octapeptide-3 (SNAP-8), Palmitoyl Pentapeptide-4 (Matrixyl) — are sourced by beauty brands, skincare R&D chemists, and med-aesthetic OEMs. Ask sales for the matching batch COA and confirm which use-level, carrier, compatibility, or stability records are available or need a separate written scope.
Primary buyer fit: skincare R&D chemists scoping a finished-product line and regional cosmetic-active distributors serving brand programmes.
Specifications
Documentation available on request
Regulatory note
Supporting laboratory diluent containing benzyl alcohol; not a cosmetic active or finished cosmetic product. Confirm preservative compatibility and destination-market sterility, endotoxin, packaging, and use requirements.
Frequently asked questions
BAC Water is sterile water containing 0.9% benzyl alcohol as a preservative, supplied as a supporting laboratory diluent rather than a cosmetic active. The preservative limits microbial growth after repeated vial entry, while compatibility with the peptide, active, and downstream formulation workflow must be confirmed before use. Pepoderma supplies BAC Water in 3 ml, 10 ml, and 30 ml sterile vial formats. The release documentation identifies the fill volume and benzyl-alcohol content and covers sterility and bacterial endotoxin. Preservative-free sterile water should be selected where benzyl alcohol is incompatible with the material or evaluation method.
The COA for BAC Water is batch-specific rather than a generic data sheet. Request it from sales for the lot being offered or supplied and review the actual methods, specifications, and results shown there. If your cosmetic-development protocol calls for an additional test or an independent laboratory report, confirm feasibility, sample needs, lead time, and buyer-funded cost before quotation.
Lyophilized BAC Water: store at Room temperature, protect from light. The typical re-test period is 24 months from manufacture date when held under these conditions; a current re-test date is printed on the COA so buyers approaching the limit can schedule confirmation testing rather than auto-discard. After reconstitution, aliquot and freeze; repeat freeze-thaw cycles are the dominant source of in-lab degradation and should be limited to three or fewer for analytical work.
Commercial terms on BAC Water: MOQ On request, lead time 7–14 days from confirmation. Bulk pricing is offered in tiers, typical break points are 10 g, 100 g, 1 kg, and 10 kg, with separate OEM-fill pricing for vialed product. Quotes include the per-unit price, INCOTERMS (DDP recommended for most pharmacy and lab buyers; EXW or FCA for buyers with their own forwarder), payment terms, and the analytical packet scope. First reply is hand-written by a regulatory specialist within 24 business hours; we deliberately do not auto-respond because the first email is where the destination-specific compliance questions get asked.
BAC Water is supplied as a cosmetic peptide active. Ask sales for the applicable batch COA, SDS, and available INCI support. The finished-formula carrier, preservative system, packaging, stability, use level, and claims remain part of the brand owner's own development and safety assessment.
BAC Water performs best in chelator-free aqueous or glycerin-based carriers at near-neutral pH (typically 5.5–7.0 for copper-peptide actives; 4.5–7.0 for non-copper anti-aging peptides). Common incompatibility flags: EDTA and other strong chelators (sequester copper in Cu-peptides), high-concentration ascorbic acid (drives reductive degradation in some peptides), benzalkonium chloride and similar quats (interact with short peptides), and high-EDTA preservative blends. Place the peptide active downstream of any reductive antioxidants in the batch process, and consider lipid encapsulation for finished products with heavy oil-phase fractions.
