About RaiSan
Founded in 1953 in Argentina, RaiSán has evolved from producing chemical products to developing environmentally friendly agricultural solutions.
By 2007, our focus turned fully toward innovation that helps plants strengthen their own natural defenses against disease.
In 2024, RaiSán USA was created to extend this mission across North America, bringing sustainable, chitosan-based technology to support healthier, stronger crops from the ground up.
Our Solution
In today’s world, protecting the environment is more important than ever, and RaiSan offers a smart, sustainable solution that balances high efficiency with respect for nature. At the heart of our formula is chitosan, a natural biopolymer derived from crustaceans, proven to enhance plant growth, strengthen natural defenses, and protect crops against fungi, bacteria, and viruses.
RaiSan also extends postharvest freshness, promotes seed germination, and improves fruit juice clarification. What sets RaiSan apart is its soluble formula, which can be easily diluted and applied in multiple ways—whether as a foliar spray, through drip irrigation, or directly to the soil—offering flexible and convenient application for any farming operation.
By uniting the power of science and nature, RaiSan has become an indispensable tool in modern agriculture, contributing to healthier crops, more sustainable practices, and ultimately, a greener planet.
The RaiSan Difference
Empower your crops.
Boost your growth.
Boosting Plant Health & Resilience Naturally
RaiSan biostimulants naturally activate a plant’s immune system, making it stronger and more resilient. This proactive defense helps plants fend off pests, diseases, and environmental stress without relying on synthetic chemicals. As plants become better equipped to defend themselves, they can focus more on growth, resulting in enhanced nutrient uptake and overall health. The result? A more robust plant that is not only healthier but also more productive.
Increased Yields & Enhanced Protection
With RaiSan, crop yields can increase by 15% to 30%, depending on the type of plant. Its powerful antimicrobial properties act as a seed protector, boosting sprouting and germination rates by up to 30%. Additionally, RaiSan’s unique combination of physical and chemical barriers helps protect plants from pests like insects and nematodes, while also alleviating attacks from fungi and viruses. This dual-action approach helps prevent the spread of disease, reduces fruit decay, and ensures healthier, more productive crops.
Gustavo Rapp | Founder, CEO
Founder Gustavo Rapp comes from a long-standing career in conventional agrochemical agriculture. It wasn’t until some years ago that he came across trials from Latin America that sparked his curiosity about sustainable farming.
He decided to contact local growers, and after gathering first-hand data, he was deeply moved by their testimonials. The efficacy of these new molecules was undeniable, and it became clear that chitosan had the potential to reshape the future of organic agriculture.
Shortly after, he founded RaiSán.
The company began running trials with former clients from the conventional agriculture sector, and the results were remarkable.
As orders started coming in, Gustavo recalls:
“We knew we had something special when interest grew beyond the organic market. We were inspired by the vision that organic agriculture could truly help feed the world — and at RaiSán, we’re on a mission to make that vision a reality.”
Versatility For Every Crop
Turfgrass
Fruits
Vegetables
Grains
Why choose us?
RaiSan 7.5: The Next Evolution in Agricultural Chitosan
Unmatched Concentration
& Proven Effectiveness
RaiSan 7.5 is three times more concentrated than any other
chitosan on the market, meaning farmers need to apply a lower dose for greater
results. Its optimized molecular weight ensures maximum agricultural
efficiency—penetrating plant defenses perfectly to activate resistance without
overloading the plant. This translates to increased yield, enhanced crop
quality, and higher profitability.
Energy-Efficient Plant Protection
Unlike salicylic acid and phosphites, RaiSan activates plant
resistance without draining energy from the plant. This means all the plant’s
energy goes directly into growth and yield, not into managing the stress of the
treatment.
Natural, Organic & Eco-Friendly
RaiSan 7.5 is 100% natural, certified organic under major
international standards, and safe for both the farmer and the consumer. As a
biodegradable product, it doesn’t pollute soils or water, making it an
environmentally responsible choice for sustainable agriculture.
Reliable & Consistent
Farmers can apply RaiSan 7.5 with confidence, knowing that
its stable, consistent formulation delivers reliable results every time,
whether applied through foliar or irrigation methods.
Proven Field Results
Extensive field trials confirm that RaiSan 7.5 increases both yield and crop quality across a wide variety of crops, including
vegetables, fruits, grains, citrus, and coffee. Farmers can rely on consistent, proven results that boost productivity and profitability.
Versatility Across Crops
Whether you’re growing intensive crops like vegetables or
extensive ones like grains, RaiSan 7.5 is highly effective across a wide range of agricultural applications. Its versatility makes it a perfect fit for any farming operation.
Certified Quality & Global Trust
RaiSan 7.5 is recognized globally, certified organic under
the world’s four major international standards. It is also an ideal product for
regenerative agriculture, enhancing soil health while boosting plant resilience
and productivity.
Innovation Backed by Science
With over 10 years of research and development, RaiSan 7.5
represents the pinnacle of agricultural innovation. It’s the most advanced
chitosan on the market, backed by both field and lab validation.
We are ready to help you unravel the potential lying in your fields.
We have:
25 years of experience in the sector
10,000 acres in trials
Operations in 7 countries
COMPATIBLE FOR USE IN ORGANIC PRODUCTION UNDER:
(EU) Regulation No. 2021/1165, Annex II; JAS Notification No. 1605, Table 1 (Japan); Executive Decree No. 29782 M.A.G., Annex I (Costa Rica). Additionally, permitted for use as an adjuvant only under USDA/NOP Final Rule, 7 CFR §205.601(m)(1).
Contact
jenn@raisanusa.com
830-402-5022
gustavorapp@gmail.com
+54-911-5809-7261
Manufacturer
AGROSUSTENABLE S.A
Escazu, San Jose-Costa Rica
Distribution
jenn@raisanusa.com
New Braunfels, Texas
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