MuscleTech Peptide 185 84 Capsules
- 1,000 mg DL-185™ dileucine per serving — a dipeptide-bound form of leucine.
- One active ingredient, disclosed at dose — no proprietary blend.
- Stimulant-free, unflavoured capsules. US MuscleTech formula.
MuscleTech Peptide 185 is a single-active capsule supplement made by MuscleTech (Iovate Health Sciences) in the United States and supplied in New Zealand by Xplosiv. Each serving delivers 1,000 mg of DL-185™ dileucine — L-leucyl-L-leucine monohydrate, a dipeptide-bound form of the amino acid leucine — and nothing else active.
One amino acid. Printed at dose.
A stimulant-free capsule for lifters who already have training and daily protein handled, and want leucine in dipeptide-bound form. One active ingredient, disclosed on the panel — no proprietary blend.
What you actually get
- 1,000 mg of DL-185™ dileucine per serving — L-leucyl-L-leucine monohydrate, printed on the Supplement Facts panel rather than hidden inside a blend.
- Leucine is the amino acid that signals muscle protein synthesis — DL-185 supplies it in dipeptide-bound form.
- One active, nothing else — no stimulants, no flavouring, no sweeteners, no proprietary blend.
- Unflavoured capsules — swallowed with water, so there is nothing to mix and nothing to taste.
Why it works
Protein supplies the material; leucine carries the signal. Total daily protein is what actually gives the body the amino acids it repairs and builds muscle with. Leucine is the amino acid most associated with switching that process on, which is why leucine content gets discussed after hard training and not just total protein grams.
DL-185 is leucine in dipeptide form. Chemically it is L-leucyl-L-leucine monohydrate: two leucine molecules joined by a peptide bond. Peptide 185 supplies 1,000 mg of it per two-capsule serving, and that single ingredient is the entire active content of the formula.
Everything sits on the panel. One active, one number, one footnote — 1,000 mg of DL-185 dileucine, carrying “Daily Value not established” exactly as the manufacturer prints it. The remaining ingredients are the capsule shell and standard encapsulating aids.
What’s inside (per serving)
| Ingredient | Per serving |
|---|---|
| DL-185™ dileucine (L-leucyl-L-leucine monohydrate)A dipeptide-bound form of the amino acid leucine. Daily Value not established. | 1,000 mg |
| Capsule (hypromellose), microcrystalline cellulose, magnesium stearate, silicon dioxideCapsule shell and standard encapsulating aids. No active contribution. | — |
Serving size and directions: the manufacturer’s current panel prints a serving size of 2 capsules, delivering 1,000 mg of DL-185 dileucine. The same label states not to exceed 3 capsules in a 24-hour period. Pack size and directions are set by the manufacturer and can change between production runs, so always read the label supplied with your pack before use.
Allergens: no allergen statement is printed on the manufacturer’s Supplement Facts panel. The other ingredients are capsule (hypromellose), microcrystalline cellulose, magnesium stearate and silicon dioxide. If you have a food allergy, check the physical label on the pack you receive before use.
What this is not. Peptide 185 is a dietary supplement built on a food-derived amino acid. It is not a hormone product, not an injectable peptide, and not a replacement for training or daily protein intake. We make no hormone, muscle-growth or strength-gain claims for it, and we do not claim dileucine is superior to, or gram-for-gram equivalent to, free-form leucine.
How to use
- Take one serving with water — swallow the capsules with a full glass of water.
- Once a day — after training on training days, or in the morning on non-training days.
- Stay under the daily maximum — the label states not to exceed 3 capsules in a 24-hour period.
- Keep your protein up — dileucine sits on top of your daily protein intake, never in place of it.
Is it for you?
Built for
- Lifters already hitting a daily protein target who want leucine in dipeptide-bound form
- People who want one named active at a printed dose instead of a blend
- Anyone avoiding stimulants, flavouring and sweeteners
- Capsule takers who do not want another powder to mix
Not for
- Anyone under 18
- Pregnant or breastfeeding women
- Anyone on medication or managing a health condition, without advice from a healthcare professional
- Anyone expecting a hormone product, or a substitute for protein and training
Stack with
Dileucine is a signal, not a substrate. Most people run it on top of a daily whey or plant protein, because the protein is what supplies the amino acids the body actually builds with. Lifters focused on strength work usually add creatine monohydrate as well. Peptide 185 replaces neither.
FAQ
What is DL-185 dileucine?
DL-185 is MuscleTech’s name for dileucine, listed on the panel as L-leucyl-L-leucine monohydrate. It is two molecules of the amino acid leucine joined by a peptide bond. Peptide 185 supplies 1,000 mg of it per serving, and it is the only active ingredient in the formula.
How many capsules is one serving?
The panel prints a serving size of 2 capsules, which delivers 1,000 mg of DL-185 dileucine. The same label states not to exceed 3 capsules in a 24-hour period. Pack size and directions are set by the manufacturer, so read the label supplied with your pack.
Is Peptide 185 a hormone or an injectable peptide?
No — it is neither. “Peptide” here describes the chemistry of the ingredient: a peptide bond is what joins the two leucine molecules together. Dileucine is a food-derived amino acid compound taken by mouth in a capsule. It is a dietary supplement, not a medicine.
Does it contain caffeine or any stimulant?
No stimulant of any kind. The full ingredient list is DL-185 dileucine plus the capsule shell (hypromellose), microcrystalline cellulose, magnesium stearate and silicon dioxide. There is no caffeine, no flavouring and no sweetener, so it can be taken at any time of day.
When should I take it?
One serving daily, with water. The label directs it after your workout on training days, or in the morning on non-training days. It does not need to be taken with food, and consistency day to day matters more than exact timing around a session.
Do I still need a protein powder?
Yes — this is not a protein source. Dileucine is a single amino acid compound and contributes no meaningful protein grams. Use it as an addition to the daily protein intake you already get from food and powder, never as a replacement for it.
Is this the United States formula?
Yes, this is the US formula. Peptide 185 is manufactured by MuscleTech (Iovate Health Sciences) in the United States and supplied in New Zealand by Xplosiv. The label is printed to United States requirements, so the panel format and wording differ from a New Zealand-made supplement.
Can I take it with creatine or a pre-workout?
No known interaction. Dileucine, creatine monohydrate and a standard pre-workout are commonly used together. Peptide 185 contains no stimulant of its own, so it adds nothing to a pre-workout’s caffeine load. Follow each product’s own label directions and daily maximums.
Dietary supplement. Not a medicine. Use as directed. Not suitable for children or during pregnancy unless advised by a healthcare professional. If symptoms persist, see your healthcare professional.
United States formula, imported and supplied in New Zealand by Xplosiv Supplements. Always read the label on the pack you receive and use only as directed.
Supplement Facts
Serving Size: 2 Capsules
| Amount Per Serving | % Daily Value |
|---|---|
| DL-185™ dileucine (L-leucyl-L-leucine monohydrate) | 1,000 mg † |
† Daily Value not established.
Other Ingredients: Capsule (Hypromellose), Microcrystalline Cellulose, Magnesium Stearate, Silicon Dioxide. No allergen statement printed on the panel.
Directions: Take one serving with a glass of water, once daily — after training on training days, or in the morning on non-training days. Do not exceed 3 capsules in a 24-hour period.
Store in a cool, dry place out of reach of children.
Panel transcribed from the manufacturer's current published Supplement Facts. Pack size and directions are set by the manufacturer and can change between production runs — always read the label supplied with your pack before use.