Hydrating Custard SPF 45
UV-1036
Lightweight and hydrating, this gel-lotion provides broad-spectrum UVA/UVB protection. It is quick absorbing for a non-greasy after-feel.
Ingredients
| Item | Trade Name | Ingredient (INCI) | (w/w)% |
|---|---|---|---|
| 1 | Pemulen™ TR-2 | Acrylates/C10-30 Alkyl Acrylate Crosspolymer | 0.80 |
| 2 | LexFeel® D4* | Neopentyl Glycol Diheptanoate (and) Isododecane | 3.00 |
| 3 | DI Water | Deionized Water | 61.40 |
| 4 | LexFeel® 7* | Neopentyl Glycol Diheptanote | 3.00 |
| 5 | PARSOL® 340 | Octocrylene | 2.80 |
| 6 | Oxybenzone | Benzophenone-3 | 6.00 |
| 7 | PARSOL® EHS | Ethylhexyl Salicylate | 5.00 |
| 8 | PARSOL® HMS | Homosalate | 10.00 |
| 9 | PARSOL® 1789 | Butyl Methoxydibenzoyl Methane | 3.00 |
| 10 | Glycerin | Glycerin | 2.00 |
| 11 | LexFilm™ Sun* | Polyester-7 (and) Neopentyl Glycol Diheptanoate | 2.00 |
| 12 | Phenostat™* | Caprylhydroxamic Acid (and) Phenoxyethanol (and) Methylpropanediol | 1.00 |
* Inolex Products
Processing Procedure
- Premix Items 1 and 2, then add to Item 3 (main batch) to build a homogeneous gel, and then heat to 80 °C.
- Combine Items 4 – 11 and heat to 80°C while mixing until clear.
- Add Item 4 – 11 to main batch with vigorous mixing until homogeneous gel cream forms (if not too thick, homogenize the batch).
- Add Item 12 while cooling to room temperature.
- Adjust pH to 4.50 to 5.00.
Physical Properties
pH @ 25 °C = 4.00 – 5.00
Viscosity @ 25 °C (Brookfield DV1MRV; Spindle T-C @ 10 rpm) = 45,000 – 60,000 cps
Stability
45 °C (12 weeks), 50 °C (12 weeks), F/T (3 cycles)
Testing
SPF: FDA 2011, in-vivo on 3 subjects, 80 min water resistance
Critical Wavelength: FDA method
Preservative Efficacy Testing: EP-A, EP-B, PCPC, USP
Ingredient Function
LexFeel™ 7:Light, dry, and spreadable sensory emollient. This ester is excellent for solubilizing UV filters and dispersing pigments. It imparts a non-greasy after-feel and reduces the tackiness of heavier emollients.
LexFeel® D4:This volatile sensory enhancer is a silicone-free emollient that mimics the properties of cyclomethicone.
LexFilm™ Sun:Provides both excellent waterproofing as well as UV filter solubilization.
Phenostat™: Preservation system for broad spectrum coverage even at neutral pH.
Natural Origin Content
ISO 16128, includes water: 64%