We invite you to evaluate a new antibody.*
Guaranteed – Risk-free – and Simple

If the antibody is unsuitable for your application, you will receive a full-credit.

How It Works:

Following your evaluation, if your antibody trial was unsuccessful, email your results to antibodies@sial.com and we'll credit you the cost of the antibody. Guaranteed. Risk-free. Simple. (Please include your original order number or delivery note reference number.)

Sigma^® supplies the highest quality antibodies, with each meeting rigorous application testing. The performance of each of our antibodies is documented by reproducible data, including online data sheets and certificates of analysis. However, we cannot test each antibody in all applications or species. If Sigma's product literature does not indicate whether our antibody is suitable for your application or species, we invite you to use our No-Risk Antibody Trial Program.

Place your order online or call 800-325-3010. Please use Promo Code 168 with your trial antibody order.

*Prestige Antibodies^® Powered by Atlas Antibodies and FLAG^® Antibodies are not included in this trial program.

Sigma Antibodies

• Over 25,000 high quality antibodies
• Validated to your protein of interest
• Online search tools such as Your Favorite Gene Search powered by Ingenuity
• New antibodies added daily
• World distribution and technical support

Frequently Asked Questions

Q. How do you reference the promo code?
A. When placing the order by phone, ask the customer service representative to add the promo code to each antibody you choose to test. When ordering by internet, place the promo code in the field next to the product when completing your order. If you order through a special eCommerce system that does not have a promo code field, please place the promo code in the comments field.

Q. Are Prestige Antibodies^® included in the No-Risk Antibody Trial program?
A. No they are not. Because Prestige Antibodies, Powered by Atlas Antibodies are the most highly validated antibodies in the industry and extensive validation data is available for every antibody, we are not including them in the No-Risk Antibody Trial Program.

Q. Are FLAG^® Antibodies included in the No-Risk Antibody Trial program?
A. No they are not, because FLAG antibodies are antibodies for recombinant protein and are used differently than regular primary antibodies. In addition, FLAG antibodies have been introduced to market for extended period of time. There are lots of publications to validate the application of FLAG antibodies. We are not including them in the No-Risk Antibody Trial program.

Q. Is there a time limitation within which the antibody must be tested in order for this refund policy to be valid?
A. Yes, 6 months from receipt of the antibody.

Q. Is there an expiration date for this program?
A. Yes, currently promotion 168 runs to December 31, 2010.

Q. Does the program apply to more than one antibody purchase? If I buy two antibodies are they both valid for this promotion?
A. Absolutely, the program applies to as many antibodies as you would like to test.

Q. Does the antibody need to be returned if the trial is unsuccessful?
A. No the antibody does not need to be returned, but you must email your order number and antibody product number along with an explanation of the trial and your results to antibodies@sial.com.

Q. Are there trial sizes of antibodies available?
A. There are no free trial sizes and in most cases we do not have sample sizes available. Please order the smallest pack size for your trial of the antibody. For some of our newer products we may have a 25 µL evaluation size available at a reasonable price. All sizes will be listed on the Web with current pricing.

back to top