Form: Ultra-fine white crystalline powder – fast-dissolving

Chemical Name: Potassium bitartrate

Purity: 100% pure – no additives or fillers

Grade: Food & cosmetic-safe

pH Effect: Mildly acidic – helps neutralise surface lye

Shelf Life: 3+ years when stored sealed and dry

• Soda Ash Prevention: 0.5-1% PPO for smooth, ash-free cold-process bars.
• Bath Bomb Hardener: 2:1 bicarb:tartar ratio for slow fizz and durable shapes.
• Creamy Lather Boost: Enhances soap texture and gentleness.
• Gentle Exfoliation: Fine crystals refine skin in scrubs and masks.
• Emulsion & Stability: Supports pH balance in creams and lotions.
• Versatile Wellness: Adds silky feel to playdough, slime, and glazes.

• General Handling: Store sealed in a cool, dry place; airtight in humid areas.
• Skin Contact: Gentle; suitable for sensitive formulations.
• Ingestion: Food-grade – safe in moderation.
• Allergies: Rare; test if concerned.
• Eyes: Avoid dust; rinse with water.
• Environmental: Biodegradable.
• First Aid: Rinse skin/eyes with water; seek advice if needed.

Can cream of tartar be used in soap and skincare?
Yes – food-grade, cosmetic-safe; prevents ash and adds gentle benefits.

How does it prevent soda ash in cold-process soap?
Neutralises surface lye – add 0.5-1% PPO or sprinkle post-pour.

What's the usage rate in bath bombs?
2:1 bicarb:tartar for hard, slow-fizz bombs.

Will it affect scent or colour?
No – odourless white crystals; preserves fragrance and micas.

Is it suitable for sensitive skin?
Yes – gentle and non-irritating in formulations.

How to store in humid climates?
Sealed jar with silica pack in cool spot – prevents clumping.

Can it be used in melt & pour or scrubs?
Yes – ¼ tsp per 500g M&P for slip; blend in scrubs for mild exfoliation.

Any other creative uses?
Yes – stabilises slime, smooths playdough, shines cookie glazes.