



Amino Acids 35 — Compound Amino Acid Powder, ≥ 35% Total Amino Acids
The volume grade. A fully water-soluble hydrolysed feather protein powder carrying ≥ 17% total nitrogen, priced for foliar and fertigation programmes measured in hectares rather than in greenhouses.
- Total Amino Acids≥ 35%
- Total Nitrogen≥ 17%
- Organic Matter≥ 35%
- Moisture≤ 5%
- pH (1% solution)4 – 6
What This Product Is
Amino Acids 35 is the entry concentration in the Everwell range: duck feather keratin hydrolysed, purified, concentrated and spray dried to a free-flowing powder with at least 35% total amino acids and at least 17% total nitrogen.
It exists because most of the hectares in the world are not planted to high-value horticulture. Rice, wheat, corn and oilseeds are priced per hectare, and a programme that works on a greenhouse tomato budget will never reach them. The 35 grade carries the highest total nitrogen figure in the range, so it delivers organic N alongside free amino acids at the lowest cost per hectare we can offer.
Everything else matches the rest of the range: 100% water solubility, pH 4 to 6 in a 1% solution, no more than 5% moisture, a light yellow to brown powder, and a batch-specific COA with every shipment.
What You Get
- Lowest cost per hectare in the range, which is what decides whether a broad-acre programme happens at all
- ≥ 17% total nitrogen — the highest in the range — supplying organic N through vegetative growth
- 100% water soluble, so nothing settles in a spray tank, a drip line or a stock solution
- Free flowing and blend friendly for dry mixing into NPK, micronutrient and biostimulant products
- Produced on the same hydrolysis and spray-drying line as the 45 and 80 grades, so behaviour is predictable if you step up later
Who Buys It
- Distributors supplying rice, wheat, corn and oilseed growers
- Formulators blending water-soluble NPK at 3 to 8% amino acid inclusion
- Importers who need a volume SKU underneath a premium line
- Nursery and seedbed programmes running dilute drench solutions
What It Fixes
- Organic nitrogen sources that leave residue in nozzles and drip emitters
- Premium biostimulants priced out of broad-acre budgets
- Blends whose nitrogen is entirely mineral, with no amino acid fraction to declare
- Suppliers who will not state solubility, moisture or pH on the specification
How It Is Made And Supplied
- Source: hydrolysed duck feather protein, a renewable keratin raw material
- Four-stage process: controlled hydrolysis, purification, concentration, spray drying
- Spray drying preserves the amino acid fraction and produces a free-flowing powder
- Organic matter ≥ 35%, feeding soil biology alongside crop nutrition
- Representative profile led by glutamic acid 5.50%, proline 3.21%, serine 2.92% and valine 2.54%
- Packed in 20 kg multi-wall kraft bags with a PE moisture barrier, or 1 kg retail pouches

Technical Data
Typical specifications. Every shipment is verified against the agreed values and supplied with a batch-specific COA; where a value is not published it is left out rather than estimated.
| Total Amino Acids | ≥ 35% |
|---|---|
| Total Nitrogen | ≥ 17% |
| Organic Matter | ≥ 35% |
| Moisture | ≤ 5% |
| pH (1% solution) | 4 – 6 |
| Water Solubility | 100% |
| Appearance | Light yellow to brown powder |
| Source | Hydrolysed duck feather protein |
| Amino Acid | Representative Content |
|---|---|
| Glutamic Acid | 5.50% |
| Proline | 3.21% |
| Serine | 2.92% |
| Valine | 2.54% |
| Other amino acids | Balance |
Representative amino acid distribution from recent production batches. The full breakdown for the lot you receive is in its batch COA.
Typical Use Rates
Rates vary by crop, growth stage and formulation target. Our team provides crop-specific recommendations on request.
- Foliar spray at 100 – 200 g per 100 L of water (0.1 – 0.2%)
- Fertigation and drip at 1.5 – 3 kg per hectare per application
- Water-soluble NPK blends at 3 – 8% of finished blend weight
- Soil application or drench at 3 – 5 kg per hectare
- Seed treatment at a 0.05 – 0.1% solution
- Rice programmes at mid-tillering and booting, and broad-acre cereals at flag leaf and grain fill
How It Compares With The Alternatives
| Against Amino Acids 45 | 45 carries a higher amino acid and organic matter content; 35 carries more total nitrogen (≥ 17% against ≥ 16%) and costs less per hectare. |
|---|---|
| Against Amino Acids 80 | 80 delivers the same active load at roughly half the inclusion rate, which lowers freight per unit of active but raises price per ton. |
| Against mineral nitrogen alone | Mineral N supplies nitrogen only; this grade supplies organic nitrogen plus free amino acids and ≥ 35% organic matter. |
| Against a partly soluble organic source | Solubility here is 100%, so there is no sediment to clear from emitters, nozzles or stock tanks. |
From Sample To Production Batch
Step 1
Confirm the target: foliar, fertigation, dry blend, drench or seed treatment, since each has its own rate.
Step 2
Pre-dissolve the powder in a partly filled tank with agitation running, then top the tank up to volume.
Step 3
For dry blending, mix to homogeneity first, then dissolve a sample at field concentration to check for fines.
Step 4
Run a jar test with the intended tank partners at field concentration before committing a full tank.
Step 5
Store in the sealed bag in a dry place; the specification allows up to 5% moisture and the powder is hygroscopic.
Step 6
Keep the batch COA with the production record so the label claim can be traced to the analysis.
Product, Packaging And Application


Questions About Amino Acids 35
Why does the 35 grade have more nitrogen than the 45?
Total nitrogen counts all nitrogen in the powder, not only the nitrogen in free amino acids. The 35 grade is specified at ≥ 17% total nitrogen and the 45 grade at ≥ 16%, while the 45 grade carries more amino acids and more organic matter.
Is it fully soluble in cold water?
Water solubility is specified at 100%. Dissolve with agitation into a partly filled tank rather than adding powder to a full one.
What inclusion rate works in an NPK blend?
3 to 8% of finished blend weight for this grade. The 45 grade is normally used at 5 to 10% where a higher amino acid claim is wanted.
Do you publish a lab report for this grade?
The Eurofins reports issued in April 2026 cover Amino Acids 45, 50 and 80. For the 35 grade the figures come from the batch COA supplied with the shipment.
What packaging is available?
20 kg multi-wall kraft bags with a PE moisture liner as standard, 1 kg retail stand-up pouches, and 25 kg woven bags or custom sizes on request.
Can we get a sample first?
Yes — 200 to 500 g free of charge with a batch COA, by courier worldwide.
Other Grades In The Range

Amino Acids 45
The benchmark grade: ≥ 45% total amino acids, ≥ 60% organic matter, and 41.93% free amino acids measured by Eurofins under GB/T 18246-2019. The grade
View specification
Amino Acids 80
The density grade: ≥ 80% total amino acids, ≥ 80% organic matter, and 75.37% free amino acids measured by Eurofins. Glycine and proline rich, for conc
View specification
Protein Powder
A collagen-derived protein input at ≥ 90% crude protein and ≥ 80% total amino acids, glycine and proline rich, dissolving at 99% for animal feed, pet
View specificationWhere This Grade Is Used
Get A Quotation For Amino Acids 35
Send the monthly volume, the destination port and the documents you need. A 200 to 500 g sample with its batch COA can ship in parallel.
