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Is this preservative system enough for this niacinamide serum product?
<div>Is this preservative system enough for this serum product? </div>
Niacinamide 5%
<div>Lactic acid 5% active</div><div>Phenoxyethanol 0.5%</div><div>Salicylic acid 0.1%</div><div>Peg12 dimethicone 0.1%</div><div>Citric acid 0.2%</div><div>Sodium hydroxide to pH 4.</div><div>Water</div><div>
</div><div>Package 120ml flip top cap bottle.</div>
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