Gluconolactone is a Polyhydroxy Acid (PHA) used for gentle exfoliation and hydration support.
It helps refine the look of uneven texture while also acting as a humectant, making skin feel softer and more comfortable.
Compared to stronger alpha hydroxy acids, gluconolactone is typically better tolerated, which is why it is common in sensitive-skin exfoliating toners, serums, and moisturisers.
It also supports antioxidant protection and can help improve overall formula feel in leave-on systems.
FEATURES
- Gentle exfoliation – smooths the look of texture with lower sting potential.
- Hydration support – humectant effect improves softness and comfort.
- Good for sensitive skin – often chosen when AHAs feel too strong.
- Multi-benefit – supports clarity, glow, and antioxidant protection.
BEST FOR
- Exfoliating toners
- Gentle exfoliating serums
- Sensitive-skin treatments
- Texture-smoothing moisturisers
- Body smoothing lotions
- Acid-compatible gels
FORMULATION GUIDELINES
| INCI | Gluconolactone |
|---|---|
| Type | PHA exfoliant + humectant |
| Solubility | Water soluble |
| Use Rate | 1–10% typical. 2–5% is common for gentle daily-use leave-on products. Higher levels are used in stronger exfoliating systems. |
| Best Phase | Water phase (dissolve fully before thickening) |
| pH Compatibility | We recommend finished product pH 3.5–4.5 for exfoliation performance with good tolerance (adjust based on your full active system). |
| Temperature Tolerance | Stable under normal processing. We recommend dissolving with mixing, then adding below 60°C and avoiding unnecessary long heat holding. |
| Pro Tip | Dissolve gluconolactone completely in the water phase before you thicken or emulsify to reduce grittiness risk. Combine with soothing ingredients (panthenol, allantoin, licorice derivatives) for better comfort in leave-on products. Use a chelator (example: disodium EDTA) and confirm pH stability after 24 hours because some systems drift. |
| Appearance | White crystalline powder |
| Stability Notes | Generally stable in acidic systems. Confirm clarity, pH drift, and compatibility with your preservative and fragrance. |
| Storage | Keep sealed, cool and dry. Protect from humidity. |
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