★What is the appearance and purity of your Phloretin?
White to off-white crystalline powder, purity ≥ 98% (HPLC), low heavy metals, no odor, stable batch consistency.
★Is Phloretin water-soluble or oil-soluble?
Phloretin is slightly water-soluble, better oil-soluble.
It can be dissolved in ethanol, propylene glycol, glycerin, or oil phase for better formulation compatibility.
★Is Phloretin better than other antioxidants?
Phloretin has a broad-spectrum antioxidant effect, stronger than vitamin E and similar to ferulic acid. It is especially effective in stabilizing vitamin C and reducing irritation, making it ideal for high-end formulas.
★What is the recommended dosage of Phloretin in cosmetic formulations?
Phloretin is active at low concentrations:
Antioxidant serums (with vitamin C + ferulic acid): 0.5-1.5%
Whitening / anti-pigmentation products: 0.5-1%
Anti-aging creams / lotions: 0.3-1%
Sunscreen boosters: 0.5-1%
Penetration enhancer in formulations: 0.1-0.5% (for functional enhancement)
For the classic CEF serum, the typical ratio is 15% L-ascorbic acid + 1% Phloretin + 0.5% ferulic acid. Start at 0.5% for first trials.
★Is Phloretin approved for cosmetic use in the EU, USA, and China?
EU: Listed in CosIng as Phloretin (CAS 60-82-2) with no concentration restriction.
USA: Allowed as a cosmetic ingredient; FDA has no specific ban.
China (NMPA): Listed in IECIC 2021 (INCI: 根皮素) with no maximum concentration specified (typical use ≤1%).
We provide full registration documents including COA, MSDS, TDS, and China compliance declaration.
★Can Phloretin be combined with other active ingredients (retinol, niacinamide, AHAs, peptides)?
Yes, Phloretin is highly compatible and often used as a booster.
With retinol: Excellent. Phloretin enhances retinol penetration and reduces retinol-induced irritation via anti-inflammatory action.
With niacinamide: Fully compatible.
With AHAs/BHAs: Yes, but keep pH >3.5 to avoid potential degradation (Phloretin is stable down to pH 4.0).
With peptides: Fully compatible.
With vitamin C + ferulic acid: The classic “gold standard” antioxidant synergy.
Avoid combining with strong oxidizing agents in the same formula.
★What products is Phloretin suitable for?
Brightening serums, day creams, sunscreens
Anti-aging & firming products
Soothing repair, post-sun care
Oil-control & acne products
High-end VC-complex formulas
★What is the recommended usage rate of Phloretin?
Recommended concentration: 0.1% – 1.0%
For antioxidant & brightening: 0.5% – 1.0%
For soothing & oil control: 0.1% – 0.5%
