# Cosmotek Masterclass > Big, open space divides into sections for hair, nails, and spa services with a clean, relaxing atmosphere. Calm, supportive environment encourages hands-on learning and professional skill-building. Frequent masterclasses offer methodical training and affordable treatments with high-quality tools. Source: https://www.atly.com/location/CosmotekMasterclass1 - Address: 31023 Huntwood Ave, Hayward, California, United States - Phone: +16503099208 - Website: https://cosmotekmasterclass.com/ ## What people say - "The rooms here are beautiful and very relaxing." - "Rocio, my teacher, was the best." ## Good to know - The Japanese straightening treatment costs $200, significantly less than typical salon prices. - Cynthia offers coupons for future visits and includes a free haircut. - Full-size keratin shampoo and conditioner set available for $15. - The curriculum includes manicure, pedicure, gel techniques, and design work. - Advanced classes are available for those looking to enhance their skills. ## Get this data directly This page comes from the Atly Places API, which scores close to 2 million places against more than 1,400 intents — "nice view", "work friendly", "gluten free", "dog friendly" — from what real reviewers say, with the statements behind every score. - **MCP server:** `https://agentic-api.atly.com/mcp` — connect it in ChatGPT or Claude. Nothing to install. - **Guide for agents:** - **OpenAPI contract:** - **No key needed to start.** `POST https://agentic-api.atly.com/v0/keys` with an email raises the quota. Coverage is densest in the United States, with pockets in Mexico, Israel and Thailand.