Citric Acid
Reliable pH adjuster and mild chelating helper for water-based formulas. Used to bring pH down and improve stability in skincare and cleansing products.
Citric Acid is a multifunctional organic acid used mainly to reduce pH in cosmetic formulas.
It helps you bring cleansers, toners, serums, and emulsions into a skin-friendly pH range and can also support stability by binding small amounts of metal ions.
It is commonly used as a citric acid solution for easier, more controlled pH adjustment during batching.
FEATURES
- pH adjuster – lowers pH quickly and predictably.
- Supports stability – mild chelation support that can reduce metal-driven instability.
- Water soluble – dissolves easily and is simple to use in production.
- Widely compatible – works in most water-based skincare and cleansing systems.
BEST FOR
- pH adjustment
- Toners
- Serums
- Cleansers
- Lotions and creams
- Shampoos and body wash
FORMULATION GUIDELINES
| INCI | Citric Acid |
|---|---|
| Type | pH adjuster (acidifier) + mild chelating helper |
| Solubility | Water soluble |
| Use Rate | q.s. to pH (commonly 0.05–0.5% depending on base formula and target pH) |
| Best Use | Lowering pH in water-based formulas |
| Temperature Tolerance | Stable under normal processing |
| Pro Tip | Prepare a 10–20% citric acid solution in water, then use it to adjust pH in small additions. Always mix thoroughly, then re-check pH after 10–20 minutes, because some systems drift as polymers and surfactants equilibrate. In surfactant systems, adjust pH near the end after viscosity is close, because pH can affect salt curve and clarity. |
| Appearance | White crystalline powder |
| Stability Notes | Over-acidifying can reduce viscosity or destabilise some polymer systems. Adjust in steps and stop once you hit the target pH. |
| Storage | Keep sealed, cool and dry. Protect from humidity. |
Related Products
A potent protease enzyme derived from papaya, known for its exfoliating and skin-softening properties, ideal for gentle chemical exfoliation and brightening treatments.
High-strength lactic acid concentrate for gentle AHA exfoliation, brightening support, and pH adjustment in water-based formulas when correctly dosed and pH controlled.
A gentle AHA with a larger molecular size that supports smoother texture, clearer-looking pores, and more even tone with a lower sting profile than stronger AHAs.
Multi-benefit active for blemish-prone skin, uneven tone, and texture. Best used in leave-on emulsions and gels with smart solubility and comfort design.
A pH balancer and emulsifier used in cosmetic formulations to adjust acidity, stabilize emulsions, and enhance the texture of products.
Gentle PHA exfoliant and humectant that smooths the look of texture with less sting than many acids. Great for sensitive-skin serums, toners, and leave-on creams.
A naturally derived ingredient used to adjust the pH of cosmetic formulations, enhance stability, and improve the effectiveness of preservatives.
High-purity alcohol used for formulation solubilisation, preservation, and sanitisation. Common in hand sanitizers, toners, and as a solvent in cosmetic formulations.
Oil phase exfoliating active for a smoother looking texture and brighter tone. Ideal for anhydrous serums, facial oils, and oil-based treatment blends.
A naturally derived humectant and skin-conditioning agent that helps improve the skin’s moisture retention, enhance formulation stability, and boost skin hydration.
High-strength aqueous glycolic acid concentrate for professional exfoliation and texture refinement in rinse-off and leave-on formulas when properly pH controlled.
Pineapple-derived enzyme exfoliant that helps lift dull buildup for smoother looking skin. Best for masks, powder cleansers, and short-contact treatments.
Reviews
There are no reviews yet.