Dipeptide Diaminobutyroyl Benzylamide Diacetate (CAS 823202-99-9) is one of the more familiar expression-line peptides cosmetic chemists reach for when they need a water-soluble active that fits leave-on serums and eye creams. In trade conversations, it is often called Syn-Ake, and product developers sometimes describe it as a Syn-Ake alternative peptide. Whatever the nickname, the lab file still needs the same identity: the INCI name and CAS 823202-99-9.
This article walks through what the molecule is, why formulators choose it, where stability headaches usually start, and how to keep process control simple enough for scale-up.
What Makes This Peptide Different
The structure tells most of the story. Dipeptide Diaminobutyroyl Benzylamide Diacetate is a small synthetic peptide presented as a diacetate salt. That design helps aqueous handling, so the material dissolves into water-based systems more readily than many oil-loving actives. In finished cosmetics, it is positioned for the look of expression lines – crow’s feet concepts, forehead crease concepts, and other leave-on routines where topical daily use is the point.
It sits in a useful middle ground for R&D teams. The peptide is potent enough at practical leave-on levels to matter in a formula brief, yet it remains manageable if you respect cool-down addition and a mild pH window. That balance is exactly why so many serum and eye-cream projects keep returning to CAS 823202-99-9 instead of chasing a noisier, less documented substitute.
If you are confirming supply identity first, start with the Dipeptide Diaminobutyroyl Benzylamide Diacetate (CAS 823202-99-9) product page from Monuo Chem.
Identity First: INCI, CAS, and Marketing Nicknames
Marketing language moves quickly. Regulatory and laboratory language should not. On pack files, COAs, and master formulas, use Dipeptide Diaminobutyroyl Benzylamide Diacetate. On RFQs and purchasing sheets, put CAS 823202-99-9 next to it. Syn-Ake and snake tripeptide can appear as aliases, but they should never replace the formal identifiers.
| INCI | Dipeptide Diaminobutyroyl Benzylamide Diacetate |
| CAS | 823202-99-9 |
| Common trade/marketing names | Syn-Ake; Syn-Ake alternative peptide; snake tripeptide (nickname) |
| Typical commercial purity | 98% (HPLC); custom assay available |
| Usual physical form | White to off-white powder |
| Solubility habit | Water-soluble; suited to aqueous serums and emulsion water phases |
This naming discipline prevents one of the most expensive early mistakes in peptide R&D: dosing a powder percentage as if it were a commercial diluted solution, or the reverse. When concentration basis drifts, both stability data and efficacy hypotheses drift with it.
Where Formulators Usually Put It to Work
Clear leave-on serums are the most natural home for this peptide. The water phase is easy to control, dosing is transparent, and sensory adjustments happen without fighting a heavy cream chassis. Eye creams and eye serums are another frequent destination because crow’s-feet appearance concepts align closely with how product managers talk about the ingredient.
Day and night creams can carry it as well, often at a more modest level inside a broader anti-aging stack. In every format, the same process habits apply: dissolve cleanly, add late, and keep the finished pH inside a window your preservative system and peptide both accept.
For use-level maps, Argireline pairing notes, and cool-down details, see Formulating with Syn-Ake: use level, pH, cool-down, and Argireline pairing.
Why Stability Problems Appear Even When Day Zero Looks Fine
Peptide batches rarely announce trouble at the moment of filling. A serum can look brilliant on day zero and still disappoint after accelerated storage. The usual causes are quiet ones.
Heat is the first. If Dipeptide Diaminobutyroyl Benzylamide Diacetate rides through a hot emulsification step at 70-80 C, the fresh batch may still pass visual checks. Later assay drift, odor change, or weaker sensory contribution is what tells the real story. That is why cool-down addition – ideally below about 40 C, with many labs aiming near 35 C – remains standard practice.
pH is the second. Leave-on work commonly sits around a mild window near pH 4.5-6.5. Push the chassis too alkaline, or change the buffer and preservative package without rechecking haze and viscosity, and the peptide gets blamed for problems that began in the vehicle.
Incomplete dissolution is the third. Dumping dry powder into a finished emulsion is a fast way to create haze, speckles, or uneven local concentration. A clear aqueous stock solution is slower by minutes and cheaper than a failed stability week.
A Practical Lab Workflow That Protects the Peptide
The method does not need to be exotic. It needs to be repeatable.
- Confirm CAS 823202-99-9, INCI, HPLC assay, and lot number on the COA
- Protect the powder from humidity; reseal promptly after weighing
- Pre-dissolve in deionized water until the stock is clear
- Finish hot processing of the chassis first
- Cool the bulk to <=40 C
- Add the peptide stock under moderate agitation
- Fine-tune finished pH into your validated mild window
- Complete preservation, viscosity adjustment, and filling
- Track appearance, pH, odor, viscosity – and peptide assay when your lab can
Treat these steps as process control, not optional craft. When they are written into the notebook next to the CAS number, scale-up conversations with purchasing become much calmer.
Use Level Thinking Without Brochure Confusion
Industry discussion for leave-ons often sits in a broad 0.5-5% band. Many serum concepts cluster near 3-4%, while eye-area products often start lower. Those numbers are useful orientation for R&D. They are not universal recipes, and they are meaningless until you know whether the percentage refers to high-purity powder or a diluted commercial solution.
Product managers searching for instant anti-wrinkle peptide efficacy data should also keep the same discipline. Literature and supplier summaries can guide hypotheses, but finished-product claims remain the brand’s responsibility. Keep the language cosmetic and appearance-based. Do not reach for medical treat, cure, or drug wording, and do not sell the peptide as an injectable substitute.
For claim boundaries written for marketing teams, read Writing Claims for Syn-Ake: honest language for serums and eye creams. For mechanism and comparison context, see What is Dipeptide Diaminobutyroyl Benzylamide Diacetate? and the science behind Dipeptide Diaminobutyroyl Benzylamide Diacetate.
Pairing with Argireline Without Treating Them as Twins
Formulators often evaluate this peptide next to Acetyl Hexapeptide-8 (Argireline, CAS 616204-22-9). The pairing is popular because the two ingredients approach expression-line appearance through different signaling stories. That makes them complementary candidates in a multi-peptide brief.
It does not make them interchangeable. If you swap one CAS for the other, revalidate sensory, stability, cost-in-use, and claim language. When you combine them, keep both on cool-phase discipline and share a mild pH window so one active’s comfort zone does not damage the other.
Troubleshooting Without Guesswork
| What you see | What it usually means | What to try next |
| Haze right after addition | Incomplete dissolution or thickener order issues | Pre-dissolve fully; revisit gum sequence; keep wetting mild |
| Assay or sensory drift on aging | Hot-phase stress or aggressive pH | Add only in cool-down; retarget a milder finished pH |
| Weaker result than expected | Powder vs solution percentage confusion | Recalculate on the true active basis and rewrite the notebook |
| Pilot and bulk feel different | Sample-to-bulk specification drift | Freeze CAS, HPLC, and grade language in the purchase file |
| Cold-storage speckles | High dose or crystallization risk | Lower use level; rebalance humectants and solvents |
Practical Handling and Storage
As a powder, Dipeptide Diaminobutyroyl Benzylamide Diacetate prefers a cool, dry, light-protected environment. Humidity is the everyday enemy: open a container, leave it open, and caking begins to teach expensive lessons. Reseal promptly after weighing.
Aqueous stocks are convenient for accurate dosing, but they are not meant for endless freeze-thaw cycles or long casual storage. Prepare them when you need them, keep hold times short, and remember that powder shelf life is not the same thing as finished-formula shelf life. Validate the bottled product with your own stability protocol.
Choosing a Supplier
Quality matters when a peptide sits at the center of a launch timeline. Purity affects both sensory and assay behavior, and unclear documentation slows every handoff between R&D, QA, and purchasing. Look for a supplier that can provide a clear COA with HPLC assay, MSDS/SDS support, consistent 98% commercial grade or agreed custom assay windows, and the willingness to discuss formulation fit rather than only unit price.
Monuo Chemical supplies research- and cosmetic-grade Dipeptide Diaminobutyroyl Benzylamide Diacetate with COA, MSDS, and formulation support.
For quotations and documents, visit the Dipeptide Diaminobutyroyl Benzylamide Diacetate (CAS 823202-99-9) page or contact Monuo Chem.
Frequently Asked Questions
1. What is Dipeptide Diaminobutyroyl Benzylamide Diacetate?
It is a synthetic cosmetic peptide identified by INCI Dipeptide Diaminobutyroyl Benzylamide Diacetate and CAS 823202-99-9. In market language it is widely associated with Syn-Ake and is used in leave-on products aimed at the appearance of expression lines.
2. Why do formulators care so much about cool-down addition?
Because heat stress can leave day-zero appearance intact while still hurting later assay retention and sensory consistency. Adding the peptide after the chassis has cooled – ideally below about 40 C – is one of the simplest ways to protect Dipeptide diaminobutyroyl benzylamide diacetate formulation stability.
3. What pH should I target in a leave-on serum?
Many labs work around a mild window near pH 4.5-6.5. That range fits a large share of preserved leave-on systems, but your own chassis always has the final vote. Validate before scale-up.
4. Is Syn-Ake the same as CAS 823202-99-9?
Syn-Ake is a widely recognized trade and marketing reference connected to this INCI. For purchasing, regulatory files, and COA matching, CAS 823202-99-9 is the definitive chemical identifier.
5. Can I combine it with Argireline?
Yes, formulators often evaluate the two together because they are complementary rather than identical. Keep both on cool-phase and mild-pH discipline, and do not treat CAS 823202-99-9 and CAS 616204-22-9 as drop-in replacements for each other.
6. Where can R&D teams source documented material?
Review supply options for Dipeptide Diaminobutyroyl Benzylamide Diacetate (CAS 823202-99-9) from Monuo Chem, including COA and MSDS support.
Closing Thoughts
Dipeptide Diaminobutyroyl Benzylamide Diacetate remains a workhorse expression-line peptide because it combines a clear cosmetic role with practical aqueous handling. The chemistry is manageable. The headaches usually come from identity drift, hot-phase shortcuts, and pH neglect.
Lock CAS 823202-99-9, dose from a clear stock, add in cool-down, and validate a mild finished pH. Do that, and the peptide has a fair chance to behave the way your formulation brief intended.
Monuo Chemical supplies research- and cosmetic-grade Dipeptide Diaminobutyroyl Benzylamide Diacetate with COA, MSDS, and formulation support.
Related Reading
- Formulating with Syn-Ake (CAS 823202-99-9): Use Level, pH, Cool-Down & Pairing with Argireline
- What is Dipeptide Diaminobutyroyl Benzylamide Diacetate? Can it really smooth out wrinkles just like Botox?
- Writing Claims for Syn-Ake: Honest Language for Serums & Eye Creams
- The Science Behind Dipeptide Diaminobutyroyl Benzylamide Diacetate
- Related product: CAS NO.823202-99-9 Dipeptide Diaminobutyroyl Benzylamide Diacetate
Disclaimer
Information is for cosmetic raw-material education and technical reference. It is not medical or legal advice. Finished-product claims, labeling, and regulatory filings remain the customer’s responsibility. Verify each lot against the supplied COA and SDS.