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Description
IL-28A/IFN-λ2 Protein, MouseProduct Specification Species Mouse Synonyms Interferon lambda 2; IFN lambda 2; Interleukin 28A; IL 28A; Accession Q4VK74 Amino Acid Sequence Asp20 Val193 Expression System E. coli Molecular Weight 20 kDa (Reducing) Purity >95% by SDS PAGE and HPLC. Endotoxin <0. 1EU g Conjugation Unconjugated Tag No Tag Physical Appearance Lyophilized Powder Storage Buffer 20mM Tris, 150mM NaCl, pH8. 0 Reconstitution Reconstitute at 0. 1 1 mg ml according to the size
Product Specification
| Species | Mouse |
| Synonyms | Interferon lambda-2; IFN-lambda-2; Interleukin-28A; IL-28A; |
| Accession | Q4VK74 |
| Amino Acid Sequence | Asp20-Val193 |
| Expression System | E.coli |
| Molecular Weight | 20 kDa (Reducing) |
| Purity | >95% by SDS-PAGE and HPLC. |
| Endotoxin | <0.1EU/μg |
| Conjugation | Unconjugated |
| Tag | No Tag |
| Physical Appearance | Lyophilized Powder |
| Storage Buffer | 20mM Tris, 150mM NaCl, pH8.0 |
| Reconstitution | Reconstitute at 0.1-1 mg/ml according to the size in ultrapure water after rapid centrifugation. |
| Stability & Storage | · 12 months from date of receipt, lyophilized powder stored at -20 to -80℃. · 3 months, -20 to -80℃ under sterile conditions after reconstitution. · 1 week, 2 to 8℃ under sterile conditions after reconstitution. · Please avoid repeated freeze-thaw cycles. |
| Reference | Nat Immunol. 2003 Jan;4(1):63-8. |
Background
Interferon lambda 2 (IFN-λ2), also known as IL-28A, is a member of the type III interferon family, which also includes IFN-λ1 and IFN-λ3. IFN-λ2 plays a crucial role in the innate immune response to viral infections and has been shown to exhibit antiviral activity against a variety of viruses, including hepatitis C virus, influenza virus, and others. It signals through the IFN-λ receptor complex, leading to the activation of JAK-STAT signaling pathways and the induction of interferon-stimulated genes (ISGs) that contribute to the antiviral defense mechanisms. IFN-λ2 is primarily produced by immune cells, such as dendritic cells and macrophages, in response to viral stimuli and functions as a key mediator of the host's defense against viral pathogens.
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4.6 ★★★★★
Based on 2408 reviews
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Product Reviews
★★★★★ 5
Best vanilla body wash I've seen
Proper vanilla scent with a kick, without the vomit inducing synthetic aftertaste
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
★★★★★ 5
Cremo Bourbon & Oak 2-in-1: A Gentleman's Shower Staple
Scent: Bourbon & Oak, Size: 16 Fl Oz (Pack of 1)
The Cremo Bourbon & Oak 2-in-1 Shampoo & Conditioner isn't just a cleaning product; it's an experience. In a world of sterile, generic men's grooming, Cremo consistently delivers a distinctive, high-quality product that feels far more premium than its price tag suggests. If you're looking to elevate your daily shower ritual, this is the bottle to grab.
The Scent: Unmistakable Sophistication
The most immediate and defining characteristic of this product is, without a doubt, its Bourbon & Oak fragrance. It masterfully blends warm, slightly sweet notes of aged oak and barrel-aged bourbon with a subtle, earthy musk.
Projection: The scent is robust in the shower, creating a satisfying, rich steam, but it quickly settles down. It leaves a subtle, masculine residual scent on your hair that lasts for hours without overpowering cologne. It smells authentic—like a high-end barbershop mixed with a cozy speakeasy.
Aroma Profile: Unlike many cheap fragrances that smell synthetic, the Cremo scent is layered and complex, avoiding that cloying sweetness that can plague other vanilla or wood-based products.
Performance: The Best of Both Worlds
When it comes to 2-in-1 products, there's always a risk of compromise—great cleaning, poor conditioning, or vice versa. Cremo successfully sidesteps this pitfall.
Cleansing Power: The shampoo produces a rich, satisfying lather that effectively cuts through product buildup and oil without stripping the hair of its natural moisture. It leaves the scalp feeling invigorated and genuinely clean.
Conditioning Efficacy: This is where the product truly shines. After rinsing, the hair feels surprisingly soft and manageable. For men with shorter to medium-length hair, the built-in conditioner provides enough hydration to prevent that stiff, straw-like feeling that often follows a wash. It makes combing and styling noticeably easier.
Formula: It’s formulated to rinse clean with no residue, which is essential for a product designed for daily use.
The Verdict
The Cremo Bourbon & Oak 2-in1 is an exceptional offering that delivers on its promises. It is the gold standard for men who want a convenient, high-performing 2-in-1 without sacrificing the luxury of a refined scent.
Final Recommendation: Buy it. This is an easy replacement for whatever generic shampoo you currently have in your shower. It’s an effortless way to upgrade your routine and start your day with a confidence-boosting aroma.
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Reviewed in the United States on October 10, 2025
★★★★★ 5
5/5
Scent: Palo Santo, Size: 16 Fl Oz (Pack of 1)
absolutely love the Palo Santo Chemo Body Wash by Cremo. The scent is warm, woodsy, and slightly sweet without being overpowering. It smells clean but elevated — like a subtle, high-end cologne that lingers just enough after you shower.
The lather is rich and creamy, and a small amount goes a long way. It leaves my skin feeling clean and moisturized without that tight, dry feeling some body washes cause. The fragrance lasts for hours, which I appreciate because it layers well with other products.
If you like warm, earthy scents with depth, this is a must-try. I will definitely be repurchasing!
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Reviewed in the United States on February 24, 2026
★★★★★ 5
Nice body care need not cost a fortune.
Scent: Palo Santo, Size: 16 Fl Oz (Pack of 1)
The Cremo product line is a favorite and Palo Santo is one that tops the list for us. We like the Cremo body care line's execution, variety, quality, anti- elitist price and inclusive availability. Palo Santo is softly sweet with just enough cardamom spice and papyrus for a round, smooth aroma with no sharp edges to annoy those around you. Just enough of the Cremo body wash frangrance lingers to keep you feeling fresh all day. This product lathers nicely and is neither too heavy nor too thin to use with a traditional wash cloth, loofah, natural or synthetic sponge, pouf or bath brush. Cremo body wash makes a nice foot soak and hand wash too. We fill a bottle to keep by the kitchen and bathroom sinks. Our wish is that the company produces large, minimally packaged refills to spare the plastic. Until then, please reuse and / or recycle the containers. NOTE: When selecting fragrance, ignore marketing and wear what appeals to you. Treat gender, age, price category snobbery and other target market gimmicks as irrelevant. Wear / use what you like, and not because it is purported to be "exclusive", someone told you to or that you cannot possibly be cool / alluring / beautiful / handsome or appear wealthy or celebrity-adjacent without it.
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Reviewed in the United States on May 25, 2026
★★★★★ 5
Add to Cart ❤️
Scent: Bourbon & Oak, Size: 16 Fl Oz (Pack of 1)
The scent is incredible — warm, slightly sweet bourbon with a rich oak finish. It smells high-end without being overpowering. It lingers just enough to notice but doesn’t clash with cologne.
Performance-wise, it delivers. It cleans thoroughly without stripping and leaves hair soft and manageable instead of dry or heavy. For a 2-in-1, it actually conditions well — which isn’t always the case with combo products.
I originally bought it as part of a gift set for my father, and he’s since had me repurchase it four times — so that says everything.
If you like warm, masculine, slightly woody scents and want something that performs as good as it smells, this one truly hits the ball on the head. Definitely a repeat buy.
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Reviewed in the United States on February 28, 2026
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