P-gard 221 (Use as Geogard 221)
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| What is it? |
A natural broad-spectrum preservative blend based on organic acids. This natural preservative is used in cosmetic products to protect formulas from bacteria and fungi and help them last longer. It is fully compatible with a wide variety of formulations as well as most types of cationic, nonionic and anionic systems. It is composed of DHA and benzyl alcohol and is compliant with NPA and Soil Association criteria, with the ability to work in an extremely wide pH range. |
| INCI | Benzylalcohol, dehydroacetic acid |
| Usage rate | Recommended use level of 0.2-0.8%. Max use 1.15% (not allowed in aerosols). Can be added directly to the formulation below 100°F/40°C. External use only. |
| Applications |
– Anhydrous – Baby care – Baby wipes – Body Butter – Body wash – Conditioner – Cream – Deo/ Anti-Perspirant – Eye creams/gels – Eye shadow – Face Lotion – Face wipes – Facial Cream – Foundation – Hair gel – Hand soap – Lipstick/gloss – Lotion – Make up remover – Mascara – Oil in Water – Powder – Shampoo – Sun-care – Toner – Water in Oil |
| pH |
Effective at a pH of 7.0 or lower |
| Solubility | Soluble in water, alcohols & glycols |
| Why do we use it in formulations? | It provides broad spectrum activity against bacteria, yeast, and mould whilst being low cost in use. Tests comparing Preservative P-gard 221 to Parabens and Paraben blends indicate higher efficacy and better performance in formulations with a low to neutral pH, and shows good stability and efficacy in a wide variety of formulations |
| Do you need it? | You should have at least one broad-spectrum preservative; P-gard 221 is a good choice if you prefer natural preservatives. |
| Strengths |
Tests comparing P-gard 221 versus parabens and paraben blends show higher efficacy across the board and substantially better performance in formulations with a lower pH. |
| Alternatives & Substitutions | You’ll need another broad-spectrum preservative. Liquid Germall™ Plus is an effective, versatile choice, but it isn’t natural. Natural alternatives include Preservative ECO (Geogard ECT), though it have a lower effective pH range. |
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Benefits |
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Always test formulations. This product is intended for external use only.
