Rule 1
R1 Essential Amino 9 - 10 Serve Trial
$10.00 AUD
Unit price perR1 Essential Amino 9 by Rule 1 in a 10-serve trial size is a handy way to try the formula or keep a portable option in your gym bag. Each 11.5 g scoop of Sour Watermelon gives 7.5 g of all nine essential amino acids, including 5 g of BCAAs, plus a 500 mg electrolyte blend, with no stimulants.
Key features
- Trial size with 10 serves, Sour Watermelon flavour
- 7.5 g essential amino acids per scoop, with every amino acid dose listed
- 5 g BCAAs per scoop: 2.5 g L-leucine, 1.25 g L-isoleucine and 1.25 g L-valine
- 500 mg electrolyte blend, with 160 mg sodium per scoop
- No stimulants, 35 Calories and 1 g carbohydrate per scoop
- Informed Choice certified, according to Rule 1
Nutrition information
Per 11.5 g serve (Sour Watermelon). The label lists energy in Calories; the kJ figure is an approximate conversion.
| Nutrient | Per serve |
|---|---|
| Energy | 35 Cal (about 150 kJ) |
| Carbohydrate | 1 g |
| Chloride | 460 mg |
| Sodium | 160 mg |
| L-leucine | 2.5 g |
| L-isoleucine | 1.25 g |
| L-valine | 1.25 g |
| Lysine hydrochloride | 900 mg |
| L-threonine | 850 mg |
| R1 electrolyte blend (sodium chloride, potassium chloride, magnesium oxide) | 500 mg |
| L-phenylalanine | 450 mg |
| L-methionine | 150 mg |
| L-histidine | 100 mg |
| L-tryptophan | 50 mg |
Ingredients
Sour Watermelon: active ingredients as listed in the table. Other ingredients: Malic Acid, Natural and Artificial Flavors, Citric Acid, Salt, Silicon Dioxide, Calcium Silicate, Sunflower Lecithin, Sucralose, Acesulfame Potassium, FD&C Red #40.
How to use
Mix one scoop with 8 to 12 oz (about 240 to 350 ml) of cold water or your favourite drink.
Rule 1 suggests having it around your workout on training days. With no stimulants, it can also be used on rest days or in the evening.
Good to know
- Contains 450 mg of L-phenylalanine per scoop, which is relevant for people with phenylketonuria (PKU).
- Stimulant free.
- Rule 1 states Essential Amino 9 is Informed Choice certified. If you are a drug-tested athlete, choose batch-tested products (for example HASTA or Informed Sport certified) and check with your sport before use.
- Keep out of reach of children.
FAQs
What is the difference between EAAs and BCAAs?
BCAAs are three amino acids: leucine, isoleucine and valine. EAAs are all nine essential amino acids, which include the three BCAAs. Each scoop of Essential Amino 9 has 7.5 g of EAAs, of which 5 g are BCAAs, with the rest from lysine, threonine, phenylalanine, methionine, histidine and tryptophan.
Does it contain caffeine?
No. Rule 1 lists zero stimulants and the Sour Watermelon panel shows no caffeine. Rule 1 says it can be used day or night without affecting sleep, unlike the separate Essential Amino 9 + Energy version.
How many serves are in the trial tub?
The trial tub has 10 serves of about 11.5 g each. That is enough to try it over a couple of weeks of training before deciding on a full 30 serve tub.
When should I drink it?
Rule 1 suggests sipping it around your workout on training days, and any time on rest days for extra amino acids and hydration. Mix one scoop with 8 to 12 oz of cold water.
Label details checked against Rule One Proteins Australia on 9 October 2026. Formulas can change, so always check the label on the product you buy.
Always read the label and follow the directions for use.
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R1 Essential Amino 9 - 10 Serve Trial
R1 Essential Amino 9 - 10 Serve Trial
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R1 Essential Amino 9 by Rule 1 in a 10-serve trial size is a handy way to try the formula or keep a portable option in your gym bag. Each 11.5 g scoop of Sour Watermelon gives 7.5 g of all nine essential amino acids, including 5 g of BCAAs, plus a 500 mg electrolyte blend, with no stimulants.
Key features
- Trial size with 10 serves, Sour Watermelon flavour
- 7.5 g essential amino acids per scoop, with every amino acid dose listed
- 5 g BCAAs per scoop: 2.5 g L-leucine, 1.25 g L-isoleucine and 1.25 g L-valine
- 500 mg electrolyte blend, with 160 mg sodium per scoop
- No stimulants, 35 Calories and 1 g carbohydrate per scoop
- Informed Choice certified, according to Rule 1
Nutrition information
Per 11.5 g serve (Sour Watermelon). The label lists energy in Calories; the kJ figure is an approximate conversion.
| Nutrient | Per serve |
|---|---|
| Energy | 35 Cal (about 150 kJ) |
| Carbohydrate | 1 g |
| Chloride | 460 mg |
| Sodium | 160 mg |
| L-leucine | 2.5 g |
| L-isoleucine | 1.25 g |
| L-valine | 1.25 g |
| Lysine hydrochloride | 900 mg |
| L-threonine | 850 mg |
| R1 electrolyte blend (sodium chloride, potassium chloride, magnesium oxide) | 500 mg |
| L-phenylalanine | 450 mg |
| L-methionine | 150 mg |
| L-histidine | 100 mg |
| L-tryptophan | 50 mg |
Ingredients
Sour Watermelon: active ingredients as listed in the table. Other ingredients: Malic Acid, Natural and Artificial Flavors, Citric Acid, Salt, Silicon Dioxide, Calcium Silicate, Sunflower Lecithin, Sucralose, Acesulfame Potassium, FD&C Red #40.
How to use
Mix one scoop with 8 to 12 oz (about 240 to 350 ml) of cold water or your favourite drink.
Rule 1 suggests having it around your workout on training days. With no stimulants, it can also be used on rest days or in the evening.
Good to know
- Contains 450 mg of L-phenylalanine per scoop, which is relevant for people with phenylketonuria (PKU).
- Stimulant free.
- Rule 1 states Essential Amino 9 is Informed Choice certified. If you are a drug-tested athlete, choose batch-tested products (for example HASTA or Informed Sport certified) and check with your sport before use.
- Keep out of reach of children.
FAQs
What is the difference between EAAs and BCAAs?
BCAAs are three amino acids: leucine, isoleucine and valine. EAAs are all nine essential amino acids, which include the three BCAAs. Each scoop of Essential Amino 9 has 7.5 g of EAAs, of which 5 g are BCAAs, with the rest from lysine, threonine, phenylalanine, methionine, histidine and tryptophan.
Does it contain caffeine?
No. Rule 1 lists zero stimulants and the Sour Watermelon panel shows no caffeine. Rule 1 says it can be used day or night without affecting sleep, unlike the separate Essential Amino 9 + Energy version.
How many serves are in the trial tub?
The trial tub has 10 serves of about 11.5 g each. That is enough to try it over a couple of weeks of training before deciding on a full 30 serve tub.
When should I drink it?
Rule 1 suggests sipping it around your workout on training days, and any time on rest days for extra amino acids and hydration. Mix one scoop with 8 to 12 oz of cold water.
Label details checked against Rule One Proteins Australia on 9 October 2026. Formulas can change, so always check the label on the product you buy.
Always read the label and follow the directions for use.
Free standard shipping on orders of $99.99 AUD or more within Australia.
Orders under $99.99 ship for a flat $12.98 AUD.
Delivery estimates are shown at checkout. In-store pickup is available at our Melbourne stores.
R1 Essential Amino 9 - 10 Serve Trial
We'll email you once when this product is back online. You can also check stock at your nearest Supps247 store.
Done. We'll email you when it's back in stock.
Sorry, that didn't go through. Please check your email address and try again.
R1 Essential Amino 9 by Rule 1 in a 10-serve trial size is a handy way to try the formula or keep a portable option in your gym bag. Each 11.5 g scoop of Sour Watermelon gives 7.5 g of all nine essential amino acids, including 5 g of BCAAs, plus a 500 mg electrolyte blend, with no stimulants.
Key features
- Trial size with 10 serves, Sour Watermelon flavour
- 7.5 g essential amino acids per scoop, with every amino acid dose listed
- 5 g BCAAs per scoop: 2.5 g L-leucine, 1.25 g L-isoleucine and 1.25 g L-valine
- 500 mg electrolyte blend, with 160 mg sodium per scoop
- No stimulants, 35 Calories and 1 g carbohydrate per scoop
- Informed Choice certified, according to Rule 1
Nutrition information
Per 11.5 g serve (Sour Watermelon). The label lists energy in Calories; the kJ figure is an approximate conversion.
| Nutrient | Per serve |
|---|---|
| Energy | 35 Cal (about 150 kJ) |
| Carbohydrate | 1 g |
| Chloride | 460 mg |
| Sodium | 160 mg |
| L-leucine | 2.5 g |
| L-isoleucine | 1.25 g |
| L-valine | 1.25 g |
| Lysine hydrochloride | 900 mg |
| L-threonine | 850 mg |
| R1 electrolyte blend (sodium chloride, potassium chloride, magnesium oxide) | 500 mg |
| L-phenylalanine | 450 mg |
| L-methionine | 150 mg |
| L-histidine | 100 mg |
| L-tryptophan | 50 mg |
Ingredients
Sour Watermelon: active ingredients as listed in the table. Other ingredients: Malic Acid, Natural and Artificial Flavors, Citric Acid, Salt, Silicon Dioxide, Calcium Silicate, Sunflower Lecithin, Sucralose, Acesulfame Potassium, FD&C Red #40.
How to use
Mix one scoop with 8 to 12 oz (about 240 to 350 ml) of cold water or your favourite drink.
Rule 1 suggests having it around your workout on training days. With no stimulants, it can also be used on rest days or in the evening.
Good to know
- Contains 450 mg of L-phenylalanine per scoop, which is relevant for people with phenylketonuria (PKU).
- Stimulant free.
- Rule 1 states Essential Amino 9 is Informed Choice certified. If you are a drug-tested athlete, choose batch-tested products (for example HASTA or Informed Sport certified) and check with your sport before use.
- Keep out of reach of children.
FAQs
What is the difference between EAAs and BCAAs?
BCAAs are three amino acids: leucine, isoleucine and valine. EAAs are all nine essential amino acids, which include the three BCAAs. Each scoop of Essential Amino 9 has 7.5 g of EAAs, of which 5 g are BCAAs, with the rest from lysine, threonine, phenylalanine, methionine, histidine and tryptophan.
Does it contain caffeine?
No. Rule 1 lists zero stimulants and the Sour Watermelon panel shows no caffeine. Rule 1 says it can be used day or night without affecting sleep, unlike the separate Essential Amino 9 + Energy version.
How many serves are in the trial tub?
The trial tub has 10 serves of about 11.5 g each. That is enough to try it over a couple of weeks of training before deciding on a full 30 serve tub.
When should I drink it?
Rule 1 suggests sipping it around your workout on training days, and any time on rest days for extra amino acids and hydration. Mix one scoop with 8 to 12 oz of cold water.
Label details checked against Rule One Proteins Australia on 9 October 2026. Formulas can change, so always check the label on the product you buy.
Always read the label and follow the directions for use.
Free standard shipping on orders of $99.99 AUD or more within Australia.
Orders under $99.99 ship for a flat $12.98 AUD.
Delivery estimates are shown at checkout. In-store pickup is available at our Melbourne stores.
R1 Essential Amino 9 - 10 Serve Trial
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