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Post-Light Peptide Cream · 15 mL · ~1 Month Supply
Architectural Complex 39C
A five-peptide nighttime cream for deep hydration and smoother, firmer-looking skin — without adding another complicated routine.
~1 Month Supply · 15 mL
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Free U.S. shipping on every order · 30-day money-back guarantee
01
Cleanse
02
Red Light
03
39C
04
Bed
You already made red light part of your nighttime routine. 39C gives the skincare step afterward a dedicated place: one peptide-rich moisturizer, then bed.
The lights turn off.
Your skincare routine doesn’t.
You compared wavelengths. You read the reviews. You invested in the mask.
You actually use it.
But when the session ends, what goes on your skin?
39C was created for women who want that final skincare step to be just as intentional as the device they spent hundreds of dollars choosing.
No 10-step routine. No second device. Just one final step.
Red Light → 39C → Bed
The Formula
A multi-peptide complex built into one rich nighttime cream.
Copper Tripeptide-1GHK-Cu
The copper peptide PEPTYD is built around, used in skincare to support a healthier, more resilient-looking complexion.
Tripeptide-29
Included in formulas aimed at smooth, supple-looking skin.
Acetyl Octapeptide-3
Used in creams designed to soften the look of expression lines.
Palmitoyl Tripeptide-1
A conditioning peptide found in moisturizers made for firmer-looking skin.
Palmitoyl Tetrapeptide-7
Commonly paired with Palmitoyl Tripeptide-1 in mature-skin formulas.
Also in the jar
Colloidal Gold
A conditioning, sensorial accent in the formula.
Arginine Alpha-Ketoglutarate
An amino acid derivative included for skin-conditioning support.
Dual Hyaluronic Acid
Hydration at two molecular weights for a well-moisturized feel.
Caprylic/Capric Triglyceride
A lightweight emollient behind the cushioned, fast-absorbing finish.
PEPTYD did not start with a trend. It started with a question: if peptides are the most interesting thing happening in mature-skin formulation, why are they scattered across four products you have to remember to layer?
39C answers that by putting the complex in one place — the step you were going to take anyway. No provenance story, no borrowed heritage. Just a cream designed for the two minutes after your mask comes off.
One jar. Five peptides.
One final step.
01
Cleanse
Cleanse and dry your skin as your routine and your device instructions call for.
02
Red Light
Complete your normal session, following the instructions supplied with your device.
03
39C
Apply a thin layer across face and neck as your nighttime moisturizing step.
04
Bed
Let it absorb. That is the whole routine.
Always follow the instructions provided with your specific red-light device.
39C is a cosmetic moisturizer. It is not a replacement for prescription treatments, injectables or care from a dermatologist.
~1 Month Supply · 15 mL
Flash Sale · Save 15%
Building the full routine? See the Complete PEPTYD System
No. 39C is not designed to alter or increase the performance of a red-light device. It is a topical peptide moisturizer made to fit into the skincare step after your session is finished.
No. 39C works as a nighttime moisturizer on its own, with or without a device. The post-light routine is simply the moment it was designed around.
At night, as the final step. Cleanse, complete your red-light session if you use one, then apply a thin layer of 39C across face and neck and let it absorb. Always follow the instructions supplied with your own device.
One 15 mL jar is approximately a one-month supply with nightly use. It is a concentrated treatment cream rather than a large everyday moisturizer, so a thin layer is all a post-light routine needs. Individual usage varies with how much you apply and how often.
The pale blue tint comes from the copper peptide in the formula. Copper Tripeptide-1 is naturally blue-toned, which is why copper peptide skincare so often carries that colour.
No. Every order placed today is a straightforward one-time purchase — one jar, or three jars on the buy 2, get 1 free offer. Recurring delivery is not live yet, so there is nothing running in the background and nothing to cancel.
A 30-day money-back guarantee from the date of delivery. Opened and used jars are eligible, because skincare has to be used to be judged. PEPTYD pays return shipping where a return is needed, and it is never deducted from your refund. Refunds are processed within 5-7 business days of approval and typically reach your statement 3-5 business days after that.
Standard U.S. shipping is free on every order with no minimum. Orders are packed and dispatched within 1-2 business days, and standard delivery typically takes a further 3-7 business days after dispatch. PEPTYD ships within the United States only.
Still deciding? Talk to customer support — we answer every message within 1-2 business days.
Red Light → 39C → Bed
Architectural Complex 39C
~1 Month Supply · 15 mL
Flash Sale · Save 15%
Secure checkout · Free U.S. shipping on every order · 30-day money-back guarantee · Customer support
$54$46
39C · ~1 Month Supply