Astaxanthin powder /oil (CAS No.: 472-61-7)can be obtained from both natural and synthetic sources. Here's a comparison between natural and synthetic astaxanthin:

1. Source: Natural astaxanthin is derived from natural sources, primarily from microalgae (such as Haematococcus pluvialis) or from organisms that consume these microalgae, like salmon, shrimp, and krill. Synthetic astaxanthin, on the other hand, is chemically synthesized in a laboratory using petrochemicals or other raw materials.

2. Composition: Natural astaxanthin consists of a mixture of isomers, including the main form known as all-trans astaxanthin. It also contains other carotenoids and compounds found in microalgae. Synthetic astaxanthin is typically composed of the all-trans isomer only.

3. Bioavailability: Natural astaxanthin is believed to have better bioavailability and absorption compared to synthetic astaxanthin. This is because natural astaxanthin is often found in a lipid-based matrix, which can enhance its absorption in the body. Synthetic astaxanthin, being a single isomer, may have lower bioavailability.

4. Antioxidant activity: Both natural and synthetic astaxanthin exhibit antioxidant activity. However, some studies suggest that natural astaxanthin may have superior antioxidant capacity compared to its synthetic counterpart. This could be attributed to the presence of additional compounds and isomers found in natural astaxanthin.

5. Quality and purity: The quality and purity of natural astaxanthin can vary depending on the source and production methods. Synthetic astaxanthin, being produced through chemical synthesis, can be controlled for purity and quality. However, it's important to note that the manufacturing process should adhere to strict quality standards to ensure a high-quality synthetic astaxanthin product.

6. Sustainability and environmental impact: Natural astaxanthin derived from microalgae is considered more sustainable and environmentally friendly compared to synthetic astaxanthin production, which relies on petrochemicals and energy-intensive processes. Cultivating microalgae to produce natural astaxanthin can be done in a controlled and sustainable manner, reducing the ecological footprint.

The astaxanthin we supply are all from natural sources. Moreover, we have a professional R&D team, and be able to custom developing and manufacturing various specifications of astaxanthin according to your special requirements.