Sun Defense
Sun Defense Uses, Dosage, Side Effects, Food Interaction and all others data.
Homosalate is an organic compound that belongs to salicylates. It is an ester formed from salicylic acid and 3,3,5-trimethylcyclohexanol, a derivative of cyclohexanol. Salicylates prevent direct skin exposure to the sun’s harmful rays by absorbing ultraviolet (UV) light. Homosalate specifically absorbs short-wave UVB rays, which are associated with DNA damage and increased risk of skin cancer.
It is a common ingredient in many commercially available sunscreens. There are no reported adverse effects from homosalate.
Acts as UV filters.
Octinoxate is a cinnamate ester and common ingredient in sunscreen and other skin care products to minimize DNA photodamage. It was originally developed in 1950's as an organic UV-B filter that absorbs UV-B rays from sun. It is often combined with nanoparticles or other water-resistant liposomes in formulations to increase the localization at the epidermis and decrease the risk of percutaneous absorption. Its use in pharmaceutical and cosmetic formulations is approved by FDA.
Acts as a photoprotective agent that protects the skin by preventing and minimizing the damaging effects of ultraviolet (UV) rays of natural light. The cellular effects of UV irradiation include DNA damage, cell cycle arrest, immunological depression, apoptosis, and transcriptional changes .
Also known as Ethylhexyl Salicylate. Octyl salicylate is an oil soluble chemical sunscreen agent that absorbs UVB radiation. It does not protect against UVA. Octyl salicylate is used to augment the UVB protection in a sunscreen. Salicylates are weak UVB absorbers and they are generally used in combination with other UV filters. Octyl salicylate appears to have a good safety profile. It covers wavelength in the range 295-315 nm, peak at 307-310 nm.
It is an ester of salicylic acid and 2-ethylhexanol. The salicylate portion of the molecule absorbs ultraviolet light to protect skin from the harmful effects of exposure to sunlight, while the ethylhexanol portion functions as an emollient.
Data not found.
Titanium dioxide, also known as titanium(IV) oxide or titania, is the naturally occurring oxide of titanium. It is used as a pigment under the names titanium white, Pigment White 6 (PW6), or CI 77891. It is typically extracted from ilmenite, rutile and anatase.
| Trade Name | Sun Defense |
| Generic | Homosalate + octinoxate + octisalate + titanium dioxide |
| Type | Cream |
| Therapeutic Class | |
| Manufacturer | |
| Available Country | United States |
| Last Updated: | September 19, 2023 at 7:00 am |
Uses
As ingredient in many sunscreen for protection against sunburn, skin aging and skin cancer.
Octinoxate is a sunscreen agent found in sunscreens that absorbs UV rays.
As an active ingredient in sunscreens and lip balms. Used for protection against damaging effects of sun rays.
Ingredient in sunscreens for protection against damage effects of sun light, provides protection from sunburns, aging and skin cancer.
Titanium dioxide is a sunscreen agent found in sunscreens that absorbs UV rays.
Titanium dioxide is used in most sunscreens to block UVA and UVB rays, similar to zinc oxide.
Sun Defense is also used to associated treatment for these conditions: SunburnSunburnSunburnBlisters, Dermatitis, Eczematous, Sunburn, Wounds, Abrasions, Dry, cracked skin, UV protection therapy
How Sun Defense works
Homosalate has the ability to convert incident ultraviolet radiation into less damaging infrared radiation (heat).
Absorbs UV-B (predominantly) and UV-A rays while accumulating in the outermost layer of the epidermis. Like any other photoprotective agents, octinoxate prevents the damage to cells and deoxyribonucleic acid (DNA) by reducing the p53 protein expression following UV exposure and also increases the skin's tolerability to UV rays .
Chemical sunscreen, it acts through absorption of UVB light and not UVA.
Diminish the penetration of ultraviolet (UV) light through the epidermis by absorbing UV radiation within a specific wavelength range. The amount and wavelength of UV radiation absorbed are affected by the molecular structure of the sunscreen agent.
Toxicity
LD50: Not available.
Slightly hazardous in case of skin contact, eye contact, ingestion and inhalation. Octinoxate may form reactive singlet oxygen species and induce anti-estrogenic effects . UV-induced molecular breakdown of octinoxate may interfere with cellular processes or induce oxidative damage in human skin . The NOAEL (no observed adverse effect level) is 450 mg/kg bw/day for fertility and reproductive performance, for systemic parental and developmental toxicity in Wistar rats .
LD50, (oral, rat): > 5000 mg/Kg. LD50 (dermal, rabbit): > 5000 mg/Kg.
Rat - LD50 Intratracheal (>100ug/kg ) Effects: Structural or functional changes in bronchi and trachea. There is inadequate evidence in humans for the carcinogenicity of titanium dioxide. Cancer in experimental animals: There is sufficient evidence in experimental animals for the carcinogenicity of titanium dioxide. Overall evaluation: Titanium dioxide is possibly carcinogenic to humans (Group 2B).
Volume of Distribution
For local use only, no systemic absorption.
Intended for local use only, no systemic absorption.
Six hours after titanium dioxide was administered to rats through IV injection at 250 mg/kg body weight, the highest concentration appeared in the liver; after 24 hours, the highest concentration was detected in the celiac lymph nodes, which filter the lymph from the liver.
Elimination Route
For local use only, no systemic absorption.
Can be systemically absorbed after skin application, being found in the deeper layers of the stratum corneum as well as urine, plasma, and breast milk . The mean maximum plasma concentration detected after application of 2mg/cm2 sunscreen was 7ng/mL in women and 16ng/mL in men .
Intended for local use only, no systemic absorption.
When male and female rats were fed a diet containing titanium dioxide (100 g/kg) for a period of about 32 days, a significant retention of titanium of 0.06 and 0.11 mg/kg wet weight was found only in the muscles; no retention was observed in the liver, spleen, kidney, bone, plasma, or erythrocytes
Half Life
For local use only, no systemic absorption.
Intended for local use only, no systemic absorption.
The kinetics of TiO2 elimination in the rat lung following its deposition after 7 hr exposure at 10 and 50 mg/cu m were determined for periods up to 140 days...The retention half-time was 14 days for the first clearance phase and 88 days thereafter.
Clearance
For local use only, no systemic absorption.
Intended for local use only, no systemic absorption.
The clearance of titanium dioxide from the lungs was studied in rats after inhalation of 15 or 100 mg/cu m. The average median aerodynamic diameter of the titanium dioxide particles was 1.48 um. After a single exposure, about 40-45% of the deposited particles were cleared from the lung in 25 days. At 15 mg/cu m, 0.7% was found in the hilar lymph nodes indicating penetration of titanium dioxide particles from alveoli into the lymphatic system and partial clearance by the lymphatic route. The clearance rate was similar after intra-tracheal administration of titanium dioxide. At an exposure of 100 mg/cu m, the clearance rate decreased drastically. /Other researchers/ demonstrated the presence of titanium dioxide in the lymphatic systems of 3 workers employed in processing titanium dioxide pigments.
Elimination Route
For local use only, no systemic absorption.
Can be detected in urine in unchanged form .
Intended for local use only, no systemic absorption.
The kinetics of TiO2 elimination in the rat lung following its deposition after 7 hr exposure at 10 and 50 mg/cu m were determined for periods up to 140 days.The retention half-time was 14 days for the first clearance phase and 88 days thereafter.
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