--- product_id: 3902022 title: "Source Naturals L-Proline Powder - 4 Ounce" brand: "source naturals" price: "¥3815" currency: JPY in_stock: true reviews_count: 8 category: "Source Naturals" url: https://www.desertcart.jp/products/3902022-source-naturals-l-proline-powder-4-ounce store_origin: JP region: Japan --- # 100% vegetarian & allergen-free Supports collagen & cartilage synthesis Made in USA with cGMP quality Source Naturals L-Proline Powder - 4 Ounce **Brand:** source naturals **Price:** ¥3815 **Availability:** ✅ In Stock ## Summary > 🦾 Elevate your joint game with clean, collagen-boosting power! ## Quick Answers - **What is this?** Source Naturals L-Proline Powder - 4 Ounce by source naturals - **How much does it cost?** ¥3815 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/3902022-source-naturals-l-proline-powder-4-ounce) ## Best For - source naturals enthusiasts ## Why This Product - Trusted source naturals brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Flexible Daily Use:** Mix easily in water or juice, 1-2 teaspoons daily to fit your wellness routine. - • **Pure & Clean Formula:** No gluten, dairy, soy, or artificial additives—just pure L-Proline power. - • **Trusted Quality Since 1982:** Crafted under FDA cGMP standards for consistent premium potency. - • **Joint & Skin Vitality Boost:** Fuel your body’s collagen production for resilient joints and glowing skin. - • **Vegetarian & Hypoallergenic:** Perfect for clean-eating professionals avoiding common allergens. ## Overview Source Naturals L-Proline Powder is a 4-ounce, unflavored vegetarian amino acid supplement designed to support collagen and cartilage production, promoting healthy joints and musculoskeletal function. Manufactured in the USA under strict FDA cGMP guidelines, it contains no common allergens or artificial ingredients, making it a pure, reliable choice for health-conscious adults. ## Description Buy Source Naturals L-Proline Powder - 4 Ounce on desertcart.com ✓ FREE SHIPPING on qualified orders Review: Proline, Lysine ,taurine and vitamin C makes for collagen production! Joints,skin,everywhere. - Great product, reliable quality. Review: Hard to find in HI! - Hard to find the powder here in Hawaii. Using as part of a Linus Pauling artery cleanse regime and life style change to a Mediterranean diet. So far only 2 weeks and blood pressure has gone down. Will have to see how it goes after couple months. ## Features - L-Proline is an amino acid involved in the production of collagen and cartilage and may help support healthy joints and a healthy musculoskeletal system - Suggested Use: 1 teaspoon 1 to 2 times daily, mixed in water or juice - Suitable for vegetarians. Contains no yeast, dairy, egg, gluten, corn, soy or wheat. Contains no sugar, starch, salt, preservatives, or artificial color, flavor or fragrance. - Over 40 Years of Trust. Source Naturals was created in 1982 by CEO Ira Goldberg to support everyone’s potential to enjoy optimal health. - Manufactured in the USA. Manufactured in Scotts Valley, CA, under the Good Manufacturing Practices (cGMPs) established by the US Food and Drug Administration (FDA). ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0006UDV7S | | Age Range Description | Adult | | Best Sellers Rank | #222,856 in Health & Household ( See Top 100 in Health & Household ) #10,556 in Blended Vitamin & Mineral Supplements | | Brand | Source Naturals | | Brand Name | Source Naturals | | Container Type | Bottle | | Customer Reviews | 4.3 out of 5 stars 134 Reviews | | Diet Type | Vegetarian | | Dosage Form | Powder | | Flavor | Unflavored | | Global Trade Identification Number | 00021078015512 | | Item Dimensions | 2.57 x 2.57 x 5.06 inches | | Item Form | Powder | | Item Weight | 5.44 ounces | | Manufacturer | Source Naturals | | Material Type Free | Gluten Free | | Number of Items | 1 | | Primary Supplement Type | L-Proline | | Product Benefits | Hypoallergenic | | UPC | 021078015512 | | Unit Count | 4.0 Ounce | ## Product Details - **Brand:** Source Naturals - **Diet Type:** Vegetarian - **Flavor:** Unflavored - **Item Form:** Powder - **Primary Supplement Type:** L-Proline ## Images ![Source Naturals L-Proline Powder - 4 Ounce - Image 1](https://m.media-amazon.com/images/I/61RsN2O6RKL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Proline, Lysine ,taurine and vitamin C makes for collagen production! Joints,skin,everywhere. *by F***K on July 15, 2025* Great product, reliable quality. ### ⭐⭐⭐⭐⭐ Hard to find in HI! *by T***N on October 11, 2025* Hard to find the powder here in Hawaii. Using as part of a Linus Pauling artery cleanse regime and life style change to a Mediterranean diet. So far only 2 weeks and blood pressure has gone down. Will have to see how it goes after couple months. ### ⭐⭐⭐⭐⭐ Good quality, it tastes the same as other proline products i tasted. *by W***H on January 14, 2024* Good quality and price is affordable a lot cheaper than capsules. Taste is not bad so i dont mind mixing it with food or drink. Last time i ordered l proline from bulk supplements in powder and seems like same quality but i like source natural because it has better packaging. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/3902022-source-naturals-l-proline-powder-4-ounce](https://www.desertcart.jp/products/3902022-source-naturals-l-proline-powder-4-ounce) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-05-11*